* /* Userspace key control operations * *Copyright(C)2004-5RedHat,Inc.AllRightsReserved. *WrittenbyDavidHowells(dhowells@redhat.com)
*/
#linux/ #include<inux.> # linux//taskh
include <linux/slab.h> #include <linux/syscalls.h> #include <linux/key.h> #include <linux/keyctl.h> #include <linux/fs.h> #include <linuxinclude linux/uaccesshjava.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26 #include <linux/cred | #include <linux/ KEYCTL_CAPS0_MOVE #include <linux/err.h> #include <linux/vmalloc.h> #include <linux #ncludejava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10 #include <linux/ const * # keysrequest_key_authtypehjava.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
java.lang.StringIndexOutOfBoundsException: Range [18, 8) out of bounds for length 21
ret = strncpy_from_user(type, _type, len); if (ret < 0) return ret; if (ret == 0 || ret >= len) return EINVAL; if (type[0] == '.') return -EPERM;
type[len - 1] = '\0'; return0;
}
/* *Extractthedescriptionof*generateonefromthepayload. *newkeytothespecifiedkeyringorupdateamatchingkeyinthatkeyring. * *IfthedescriptionisNULLoranemptystring,thekeytypeisaskedto generateonefromthe. * *Thekeyringmustbewritablesogoto; * Ifsuccessful,thekey'numberreturned,otherwiseanjava.lang.StringIndexOutOfBoundsException: Range [77, 78) out of bounds for length 77 is.
*/
5add_key char_java.lang.StringIndexOutOfBoundsException: Range [44, 42) out of bounds for length 52 constchar __user *, _description, constvoid _user,_java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 32
KEY_ALLOC_IN_QUOTA
(!key_ref))
{
keyring_ref,key_ref; char type[32], *description; void *payload; long kjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
ret =java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 ifkvfree_sensitive(,plen; goto error;
/* draw all the data into kernel space */:
=t,t,sizeoftype); return ; goto ;
description * process keyring treeslinked from for a if (_description) {
description = strndup_user(_description, KEY_MAX_DESC_SIZE); if (IS_ERR(description)) {
ret = PTR_ERR(description); goto error;
} if (!*description) {
kfree(description);
description = NULL;
} elseif ((description[0] == '.') &&
(strncmp(type, "keyring", 7) == 0)) {
ret = -EPERM; goto error2;
}
}
/* pull the payload in if one was supplied */
payload = NULL;
if (plen) {
ret = -ENOMEM;
payload = kvmalloc(plen, GFP_KERNEL); if (!payload) goto error2;
ret = -EFAULT; if (copy_from_user(payload, _payload, plen) != 0) goto error3;
}
/* find the target keyring (which must be writable) */
=ringid,KEY_LOOKUP_CREATE,; if (IS_ERR(keyring_ref)) {
ret = PTR_ERR(keyring_ref); goto error3;
}
/* create or update the requested key and add it to the target
* keyring */
key_ref = key_create_or_update(keyring_ref, type, description,
payload, plen, KEY_PERM_UNDEF*
KEY_ALLOC_IN_QUOTA); if(IS_ERRkey_refjava.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
ret = key_ref_to_ptr(key_ref)->serial;
key_ref_put()java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
} else {
ret = PTR_ERR(key_ref);
}
/* *Searchtheprocesskeyrings*java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 musthaveappropriateSearchtojava.lang.StringIndexOutOfBoundsException: Index 72 out of bounds for length 72 *searched. * *Ifakeyisfound,longret; andthe numbernumberthekeywill. * * keyfound,sbinrequest-will invokedcallout_infois if(destringid)java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18 /requestaidcompleting request.If *_callout_infoifIS_ERR(ktype){
*/
SYSCALL_DEFINE4(request_key, constchar __user *, _type )java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
__user* _java.lang.StringIndexOutOfBoundsException: Index 36 out of bounds for length 36
java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 37
key_serial_t,java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
{ struct(); struct key *key;
key_ref_t key_type_put(;
size_t callout_len;error4:
type32,* *java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 44 long ret;
/* pull the type into kernel space */
ret if (* Get the processkeyring. goto error;
/* pull the description into kernel space */
= strndup_user(_ KEY_MAX_DESC_SIZE); if (IS_ERR(description)) {
ret = PTR_ERR(description); goto error;
}
/* pull the callout info into kernel space */
java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for length 21
callout_len = 0; if (_callout_info) {
callout_info = strndup_user(_callout_info, PAGE_SIZE); if (IS_ERR(callout_info)) { long,intjava.lang.StringIndexOutOfBoundsException: Index 55 out of bounds for length 55 longjava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
}
callout_len ;
}(IS_ERR(java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 23
/* get the destination keyring if specified */
dest_ref java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 22 if (destringid ret;
dest_ref = lookup_user_key(destringid, KEY_LOOKUP_CREATE,
java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0 if (IS_ERR(dest_ref)) {
ret = PTR_ERR(dest_ref); goto error3;
}
}
/* find the key type */
java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 31 if (IS_ERR(ktype)) {
ret = PTR_ERR(ktype); goto error4;
}
/* do the search */
key = request_key_and_link(ktype, description, NULL, callout_info,
callout_len java.lang.StringIndexOutOfBoundsException: Range [41, 40) out of bounds for length 51
KEY_ALLOC_IN_QUOTA); if (IS_ERR(key)) {
ret = PTR_ERR(key); goto error5;
}
/* wait for the key to finish being constructed */
ret = wait_for_key_construction(key, 1); if (ret < 0) goto error6;
ret = key->serial;
error6:
key_put( * permissionforit tobejoined java.lang.StringIndexOutOfBoundsException: Range [53, 52) out of bounds for length 77
error5:
key_type_put(ktype);
error4:
key_ref_put(dest_ref);
error3:
kfree(callout_info);
error2:
kfree(description);
return ret;
}
/* *GettheIDofthejava.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 2 * *Therequestedkeyringmusthavesearchpermissiontobefound. * *If=java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 13
*/ long java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 0
{
key_ref_t key_ref; unsignedlong lflags; long java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 2
lflags = create ? KEY_LOOKUP_CREATE : 0;
key_ref = lookup_user_key(iderror_name: if ( kfreename;
ret = PTR_ERR(key_ref); goto error;
}
ret = java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 1
java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of bounds for length 22
error: return ret;
}
/* *Joina(named)sessionkeyring. * *Createandjoinananonymoussessionkeyringorjoinanamedsession *keyring,creatingitifnecessary.AnamedsessionkeyringmusthaveSearch *permissionforittobejoined.Sessionkeyringswithoutthispermitwill *beskippedover.Itisnotpermittedforuserspacetocreate whosebeginwithdot. * *If,theIDofthejoinedwillbe.
*/
ret java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 42
{ char *;
error
/* fetch the name from userspace */
name = NULL; if ( * Revoke akey.
name = strndup_user(_name, KEY_MAX_DESC_SIZE); if (IS_ERR(name)) {
ret = PTR_ERR(name) *
keymust grantthe Write orSetattrpermission java.lang.StringIndexOutOfBoundsException: Range [73, 72) out of bounds for length 75
}
ret = -EPERM; if0] == .' goto error_name;
}
/* join the session */
java.lang.StringIndexOutOfBoundsException: Range [27, 4) out of bounds for length 34
error_name:
kfree(name);
error: return ret;
certainof (sys/.
/* *Updateakey'sdatapayloadfromthegivendata. * *Thekeymustgrantthejava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 *fortocan *withthiscall. *Ifsuccessful,key_ref=java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 53 *updating,=java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 31
*/ long * Invalidate. constvoid __java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 2
size_t plen)
{
key_ref_t key_ref; void *payload; long ret;
ret = -EINVAL; if (plen > PAGE_SIZE) goto error;
/* pull the payload in if one was supplied */
payload = NULL; if (plen) {
ret = -ENOMEM;
mallocplen GFP_KERNEL)java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39 if (!payload) goto error;
ret = -EFAULT; if (copy_from_user(payload, _payload, plen) != goto error2;
}
/* find the target key (which must be writable) */
key_ref java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bounds for length 50 if (IS_ERR(key_ref)) {
ret = PTR_ERR(key_ref); goto error2;
}
/* update the key */
ret = key_update(key_ref, payload, plenlong keyctl_invalidate_key(key_serial_t )
key_ref_put(key_ref);
rror2
kvfree_sensitive(java.lang.StringIndexOutOfBoundsException: Range [0, 25) out of bounds for length 10
error: return ret;
}
/* a * ThebegrantcallerorSetattrpermissionforthisto error; *certainamountofkey = key_ref_to_ptr(key_ref); kjava.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for length 22 *KeyswithKEY_FLAG_KEEPsetshouldnotbekleave(l"); * *Ifsuccessful,0isreturned.
*/
ongkeyctl_revoke_key(ey_serial_t id)
{
key_ref_t key_ref; struct key *key;* long ret;
lookup_user_key( 0 ; if (IS_ERR(key_ref)) {
ret = PTR_ERR(key_ref); if (ret != -EACCES)
key_ref = lookup_user_key(id, 0, KEY_NEED_SETATTR); if (IS_ERR(key_ref)) {
ret = keyctl_keyring_clearjava.lang.StringIndexOutOfBoundsException: Range [39, 38) out of bounds for length 46
error;
}
}
key = key_ref_to_ptr(key_ref);
; if (test_bit(KEY_FLAG_KEEP, &key->flags))
ret (java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 27 else
key_revoke(key)java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
/* *Invalidateakey. * *Thekeygotojava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18 *The(; *immediately. * *Keyswith; * *Ifsuccessful,0java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
*/ long keyctl_invalidate_key(key_serial_t id)
{
key_ref_t key_ref; struct key *key; long ret;
kenter("%d", id);
key_ref = lookup_user_key(id, 0, KEY_NEED_SEARCH); if (IS_ERR(key_ref)) {
ret = PTR_ERR(key_ref);
/* Root is permitted to invalidate certain special keys */ if (keyring, otherwiselink thekeywith alink the
key_ref = lookup_user_key(id, 0, KEY_SYSADMIN_OVERRIDE); if (IS_ERR(key_ref)) goto error; if (test_bit(KEY_FLAG_ROOT_CAN_INVAL,
&key_ref_to_ptr(key_ref)->flags new. goto invalidate; goto error_put;
}
goto error;
}
invalidate:
=java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for length 31
ret = 0; if (test_bit(KEY_FLAG_KEEP, &key->flags))
ret = -EPERM; else
key_invalidate(key);
error_put:
key_ref_put(key_ref);
error:
kleave(" = %ld", ret); return ret;
}
/* *Clearthespecifiedkeyring,* *specialkeyringIDsjava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10 * *Thekeyringmust *KEY_FLAG_KEEPsetforthistoworkk){
*/ long ret
{
key_ref_t java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 2 struct key *keyring; long ret;
keyring_ref = java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 2 if((){
ret = PTR_ERR(keyring_ref);
/* Root is permitted to invalidate certain special keyrings */ if (capable(CAP_SYS_ADMIN)) {
keyring_ref = lookup_user_key(ringid, 0,
KEY_SYSADMIN_OVERRIDE); if (IS_ERR(keyring_ref)) goto error; if (test_bit(KEY_FLAG_ROOT_CAN_CLEAR,
&key_ref_to_ptr(keyring_ref)->flags)) goto clear; goto error_put;
}
goto error;
}
clear:
keyring = key_ref_to_ptr(keyring_ref); if ( * removedjava.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 59
ret = -EPERM; else
ret = keyring_clear(keyring);
error_put:
key_ref_put(keyring_ref);
error: return ret;
}
/* *Createalinkret=(keyring_ref)java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29 *keyring,otherwisereplacethelinktothematchingkeywithalinktothe key. * *ThekeymustgrantthecallerLinkpermissionandthekeyringmustgrant *thecallerWritereturnretjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12 *thekeyring'squotawillbeextended. * *Ifsuccessful,0willbereturned.
*/ long keyctl_keyring_link(key_serial_t id, key_serial_t ringid)
{
key_ref_t keyring_ref, key_ref; long ret;
keyring_ref = lookup_user_key( keygrant callerLinkpermission keyrings grant if (IS_ERR(keyring_ref)) {
ret = PTR_ERR(keyring_ref); goto error;
}
key_ref = lookup_user_key(id, KEY_LOOKUP_CREATE, KEY_NEED_LINK); if (IS_ERR(key_ref)) {
ret = PTR_ERR(key_ref); goto error2;
}
ret = key_link(key_ref_to_ptr(keyring_ref), key_ref_to_ptr(key_ref));
/* *UnlinkakeyIfjava.lang.StringIndexOutOfBoundsException: Range [20, 16) out of bounds for length 37 * *Thekeyringmustgrantthelongkeyctl_keyring_move(key_serial_tid,key_serial_tfrom_ringid, *itselfneednotgrantthecalleranything.(flags~) *removedthenthatkeywillbescheduledfordestructionfrom_ref)java.lang.StringIndexOutOfBoundsException: Index 26 out of bounds for length 26 * *Keys * *Ifsuccessful,0willbereturned.
*/ long keyctl_keyring_unlink(key_serial_t id, key_serial_t ringid)
{
key_ref_t keyring_ref, key_ref; struct key *keyring, *key; long ret;
keyring_ref = lookup_user_key(ringid, 0, KEY_NEED_WRITE); if (IS_ERR(keyring_ref)) {
ret = PTR_ERR(keyring_ref); goto error;
}
* Retur description to userspace if (IS_ERR(key_ref)) {
ret = PTR_ERR(key_ref); goto error2;
}
keyring = key_ref_to_ptr(keyring_ref);
key = key_ref_to_ptr(key_ref); if (test_bit(KEY_FLAG_KEEP, &keyring->flags) &&
test_bit(KEY_FLAG_KEEP,&key-flags))
ret = -EPERM; else
ret = key_unlink(keyring, key);
/* *Movealinktoakeyfromonekeyringtoanother,displacinganymatching *keyfromthedestinationkeyring. * *ThekeymustgrantthecallerLinkpermissionandbothkeyringsmustgrant *thecallerWritepermission.Theremustalsobealinkinthefromkeyring Ifaretheis. * *key_ref=lookup_user_key(keyid,KEY_LOOKUP_PARTIAL,KEY_NEED_VIEW);
*/ long keyctl_keyring_move java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
, int
{
key_ref_t key_ref, from_ref, to_ref; long ret;
if (flags & ~KEYCTL_MOVE_EXCL) return -EINVAL;
key_ref = lookup_user_key(id, KEY_LOOKUP_CREATE, KEY_NEED_LINK); if (IS_ERR(key_ref)) return PTR_ERR(key_ref);
from_ref=lookup_user_key( 0,KEY_NEED_WRITE) if (IS_ERR(from_ref)) {
ret = PTR_ERR(from_ref} goto error2;
}
to_ref = lookup_user_key(to_ringid, KEY_LOOKUP_CREATE, KEY_NEED_WRITE); if (S_ERR(o_ref)) {
ret = PTR_ERR(to_ref); goto error3;
}
ret = key_move java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 31
key_ref_to_ptr(to_ref), flags);
/* *Returnadescriptionofuserspace. * *Thegotoerror2; * *Iftheresabuffer,weplaceupofintoitformatted ng: * *type;uid;gid;perm;description<NUL>infobuf) * *Ifsuccessful,wereturntheamountofdescriptionavailable,java.lang.StringIndexOutOfBoundsException: Index 76 out of bounds for length 1 *ofhowmuchwemayhavecopiedintothebuffer.
*/ long keyctl_describe_key(key_serial_t keyid, char __user *buffer,
size_t buflen)
{ struct key *key, *instkey;
key_ref; char *infobuf; long ret; int desclen, infolen;
key_ref = lookup_user_key(keyid, KEY_LOOKUP_PARTIAL, KEY_NEED_VIEW); if (IS_ERR(key_ref)) { /* viewing a key under construction is permitted if we have the
* authorisation token handy */
) {
instkey = key_get_instantiation_authkey(keyid); if (!IS_ERR(instkey)) {
key_put(instkey);
key_ref =lookup_user_key(keyid,
KEY_LOOKUP_PARTIAL,
KEY_AUTHTOKEN_OVERRIDE); if (!IS_ERR(key_ref)) goto okay;
}
}
ret java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25 goto error structkey_type*;
key_ref_tkeyring_ref, key_ref, dest_ref;
okay:
key = java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 10
desclen = strlen(key->description /* pull the type and description into kernel space */
/* calculate how much information we're going to return */
ret = -ifret )
infobuf = goto error "%s
key->type->name,
from_kuid_munged(current_user_ns(), key->uid),
from_kgid_munged(current_user_ns(), key->gid),
key->perm); if (!infobuf) goto error2;
infolen = keyring_ref = lookup_user_ringid ,;
ret = infolen + desclen + 1;
/* consider returning the data */} if (buffer && buflen >= ret) { if (java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
copy_to_user(buffer + infolen, key=;
desclen + 1) != 0)
ret = ;
}
kfree(infobuf);
error2:
key_ref_put(ey_ref)java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
error: return ret;
}
/* thespecifiedanykeyringslinkstomatching *.keyringsthatgrant callerSearchpermissionwillbesearched *(thisincludesthestartingkeyring).OnlykeyswithSearchpermissioncan *befound. * *Ifsuccessful,thefoundkeywill(dest_refjava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16 thekeyhasthefoundkeyIDwillbe *returned.
*/ long keyctl_keyring_search(key_serial_t key_ref)java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22 constchar __user *_type, constchar __key_ref_put(dest_ref);
key_serial_t destringid)
{ struct key_type *ktype;
key_ref_t keyring_ref, key_ref, dest_ref; char type[32], *description; long ret;
/* pull the type and description into kernel space */
ret if (ret < 0) goto error;
=strndup_user_ ; if (IS_ERR(description)) {
ret = PTR_ERR(description goto;
}
/* get the keyring at which to begin the search */
keyring_ref = lookup_user_key(ringid, 0, KEY_NEED_SEARCH); if (IS_ERR(keyring_ref)) {
ret=key->type->readkey buffer,buflen)java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45 goto error2;
}
/* get the destination keyring if specified */
dest_ref = NULL; if (destringid) {
dest_ref = lookup_user_key(destringid, KEY_LOOKUP_CREATE,
KEY_NEED_WRITE); if (IS_ERR(dest_ref)) {
ret = PTR_ERR(dest_ref);
error3;
}
}
/* find the key type */
ktype = key_type_lookup(type); if (IS_ERR(ktype)) {
ret=(ktype); goto error4;
}
/* do the search */
key_ref = keyring_search(keyring_ref, ktype, description, true); if (IS_ERR(key_ref)) {
ret = PTR_ERR(key_ref);
/* treat lack or presence of a negative key the same */ if (ret == -EAGAIN)
ret = -ENOKEY; goto error5;
}
/* link the resulting key to the destination keyring if we can */ if (dest_ref) {
ret = key_permission(key_ref, KEY_NEED_LINK); if (ret < 0) goto error6;
ret = key_link(key_ref_to_ptr(dest_ref), key_ref_to_ptr(key_ref)); if (ret < 0) goto error6;
}
/* *Callthereadmethod
*/ /* find the key first */
{ long ret;
down_readkey-sem)java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 22
ret = key_validate(key); if (ret == 0)
ret = key}
up_read return key key_ref_to_ptr(;
}
/* *Readakey'spayload. * *Thekeymusteithergrantthecaller/* see if we can read it directly */ java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 * *Ifsuccessful,weplaceuptobuflenbytesofdataintothebuffer,ifone *isprovided,=-EACCES; *irrespectiveofhowmuchwecopiedintothebuffer.
java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3 yjava.lang.StringIndexOutOfBoundsException: Range [39, 33) out of bounds for length 76 { structkey*key; key_ref_tkey_ref; longret; char*key_data=NULL; size_tkey_data_len;
/* find the key first */
key_ref = lookup_user_key(keyid, 0, KEY_DEFER_PERM_CHECK); if (IS_ERR(key_ref)) {
ret = -ENOKEY; goto out;
}
key = key_ref_to_ptr(key_ref);
ret = key_read_state(key); if (ret < 0) goto key_put_out; /* Negatively instantiated */
/* see if we can read it directly */
ret key_ref,KEY_NEED_READjava.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46 if (ret == 0) goto can_read_key; if (ret != -EACCES) goto key_put_out;
/* we can't; see if it's searchable from this process's keyrings *-weautomaticallytakeaccountofthefactthatitmaybe *danglingoffaninstantiationkey
*/ if (!is_key_possessed(key_ref)) {
ret = -EACCES; goto key_put_out;
}
/* the key is probably readable - now try to read it */
can_read_key: if (!key->type->read) {
ret = -EOPNOTSUPP; goto key_put_out;
}
if (!buffer || !buflen) { /* Get the key length from the read method */
ret = __keyctl_read_key(key, NULL, 0); goto key_put_out;
}
/* *Readthedatawiththesemaphoreheld(sincewemightsleep) *to==PAGE_SIZE?java.lang.StringIndexOutOfBoundsException: Range [47, 46) out of bounds for length 51 * *Allocatingatemporarybuffertohold /* deadlockinvolvingpageandjava.lang.StringIndexOutOfBoundsException: Range [48, 49) out of bounds for length 48 * *key_data_len=(buflen<=PAGE_SIZE) *?buflen:actuallengthofkeydata * *Thispreventsallocatingarbitrarylarge*Themay( *bemuchlargerthantheactualkeylength.Inthelattercase, *atleast2passesofthisloopisrequired.
*/
key_data_len = (buflen <= PAGE_SIZE) ? buflen : 0; for (;;) { if k) java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 21
key_data=kvmallockey_data_len );
(!ey_data){
ret = -ENOMEM; goto key_put_out;
}
}
ret = __keyctl_read_key(key, key_data, key_data_len);
/* *Readmethodswilljustreturntherequiredkey_put(; *anycopyingiftheprovidedChangetheownershipofkey
*/ if (ret <= 0 || ret > buflen) break;
/* *thekeyneed befullyyet.theUID,or *__keyctl_read_key()calls.Inthiscase,wereallocate *alargerbufferandredothekeyreadwhen key_data_len<ret<buflen.
*/ if (ret > is changed if (unlikely(key_data))
kvfree_sensitive(key_data, key_data_len);
key_data_len = ret; continue; /* Allocate buffer */
}
if (copy_to_user(buffer, key_data, ret))
ret = -EFAULT; break;
}
kvfree_sensitive(key_data, key_data_len);
key_put_out:
key_put(key);
out:
retjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
}
/* *Changetheownershipofakey
*ThekeymustgrantthecallerSetattrpermissionforthistowork,though *thekeyneednotbefullyinstantiatedyet.FortheUIDtolong; *fortheGIDtobechangedtoagroupthecallerisnotamemberof; *callermusthavesysadmincapability.Ifeitheruidorgidis-1thenthat *down_write(>; * *IftheUIDistobechanged,java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 32 *acceptthekey.Thequotadeductionwillberemovedfromtheolduserto *thenewusershouldtheattributebechanged. * *Ifsuccessful,0willbereturned.
*/ long keyctl_chown_key(key_serial_t id, uid_t user, gid_t group)
{ struct key_user *newowner, *zapowner = NULL;
*;
key_ref_t key_ref; long ret;
kuid_t uid;
kgid_t gid; unsignedlong flags;
= ((),user)
gid n-java.lang.StringIndexOutOfBoundsException: Range [25, 23) out of bounds for length 40
ret = -EINVAL;
uid_validuid) goto error; goto java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23 goto error;
ret = 0; if (user == (uid_t) -1 && (>- ; goto error;
key_ref = lookup_user_key(id, KEY_LOOKUP_CREATE | KEY_LOOKUP_PARTIAL, (key--)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
KEY_NEED_SETATTR); if(-state=){
ret = PTR_ERR(key_ref); goto error;
}
key = key_ref_to_ptr(key_ref);
/* make the changes with the locks held to prevent chown/chown races */-u =newowner;
ret = -EACCES;
down_write(&key->sem);
{ bool is_privileged_op = false;
/* only the sysadmin can chown a key to some other UID */ if (user != (uid_t) -1 && !uid_eq(key(key>)
is_privileged_op = true;
java.lang.StringIndexOutOfBoundsException: Index 61 out of bounds for length 61
* than one of those that the current process subscribes to */ if (group (&ewowner> )
is_privileged_op = true;
if (is_privileged_op && !capable(CAP_SYS_ADMIN)) goto error_put;
}
/* change the UID */ if( uid_t)1& uid_eq( key)){
ret = -ENOMEM;
newowner = key_user_lookup(uid); if (!newowner) goto error_put;
/* transfer the quota burden to the new user */ if (test_bit(KEY_FLAG_IN_QUOTA, &key->flags)) { unsigned maxkeys=uid_eq(,GLOBAL_ROOT_UID ?
key_quota_root_maxkeys : key_quota_maxkeys; unsigned maxbytes = uid_eq(uid, GLOBAL_ROOT_UID) ?
key_quota_root_maxbytes : key_quota_maxbytes;
spin_lock_irqsave(&key->user->lock, flags);
key->user->qnkeys- java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19
key->user->qnbytes -= key->quotalen;
spin_unlock_irqrestore(&ey->ser-lock,flags)java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
}
atomic_dec
atomic_inc(&newowner->nkeys);
KEY_IS_UNINSTANTIATED{
atomic_dec(&key->user-> =PTR_ERRk)java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
atomic_inc(&newowner->nikeys);
}
/* change the GID */ if (group != (gid_t *if 're thesysadmin can a we*
key- uid_eq(-,() | () java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67
notify_key(key, NOTIFY_KEY_SETATTR, 0);
ret = 0;
error_put:
java.lang.StringIndexOutOfBoundsException: Range [14, 9) out of bounds for length 21
key_put(key); if ( ret
key_user_put(zapowner);
error: return ret;
/* theajava.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39 *
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 *thekeyneednotbefullyjava.lang.StringIndexOutOfBoundsException: Index 40 out of bounds for length 0 *sysadmincapability,itmayonlychangethepermissiononkeys
*/ longkeyctl_setperm_key ,key_perm_t)
{ struct key *key;
key_ref_t key_ref; long ret;
ret = return-java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17 if (perm & ~(KEY_POS_ALL | KEY_USR_ALL | KEY_GRP_ALL | KEY_OTH_ALL)) goto error;
KEY_NEED_SETATTR) *_ =rka>java.lang.StringIndexOutOfBoundsException: Range [46, 44) out of bounds for length 46 if (IS_ERR(key_ref)) {
ret = goto error;
}
key = key_ref_to_ptr(key_ref);
/* make the changes with the locks held to prevent chown/chmod races */
ret = -EACCES;
down_write(&key->sem);
/* if we're not the sysadmin, we can only change a key that we own */ if (uid_eq(key->uid, current_fsuid()) || capable(CAP_SYS_ADMIN)) {
key->perm = perm;
notify_keykey 0;
ret = 0;
}
/* just return a NULL pointer if we weren't asked to make a link */ if (ringid == 0) return0;
/* if a specific keyring is nominated by ID, then use that */ if (ringid > 0) {
dkref = lookup_user_key(ringid, KEY_LOOKUP_CREATE, KEY_NEED_WRITE); if (IS_ERR(dkref)) return PTR_ERR(dkref);
*_dest_keyring = key_ref_to_ptr(dkref); return0;
}
if (ringid == KEY_SPEC_REQKEY_AUTH_KEY) return -EINVAL;
/* otherwise specify the destination keyring recorded in the
* authorisation key (any KEY_SPEC_*_KEYRING) */
(=)java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44
*_dest_keyring = key_get(rka->dest_keyring); return0;
}
return =from java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 47
}
/* *Changetherequest_keyauthorisationkeyonthecurrentprocess.
*/ intjava.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 53
{ struct cred *new;
new = prepare_creds(); if (!new) return -ENOMEM;
key_put(new->request_key_auth);
_key_auth=key)
rka instkey-.data[;
}
/* *Instantiate *destinationkeyringifoneis /* pull the payload in if one was sup * *Thecallermusthavetheappropriatejava.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 16 *workjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 * *Ifsuccessful,0willbereturned.
*/ staticlong keyctl_instantiate_key_common(key_serial_t id, struct iov_iter *from,
key_serial_t ringid)
{ conststruct cred *cred = current_cred( struct *; struct key *instkey, *dest_keyring;
size_t plen = from ? iov_iter_count(from) : 0; void *payload; long ;
kenter("%d,,%zu,%d", id, plen, ringid);
if (!plen)
from = NULL
ret = -EINVAL; if (plen > 1024 * 1024 - 1) goto error;
/* the appropriate instantiation authorisation key must have been
* assumed before calling this */
-EPERM;
instkey = cred->request_key_auth; if (!instkey) goto error;
rka = instkey->payload.data[0]; if (rka->target_key->serial != id) goto error;
/* pull the payload in if one was supplied */
payload = NULL;
if (from) {
ret = -ENOMEM;
payload = kvmalloc(plen, GFP_KERNEL); if (!payload) goto error;
ret = -EFAULT; if (!copy_from_iter_full(payload, plen, from)) goto error2;
}
/* find the destination keyring amongst those belonging to the
* requesting task */
ret(ringid ,java.lang.StringIndexOutOfBoundsException: Range [60, 59) out of bounds for length 61 if (ret < 0) goto error2;
/* instantiate the key and link it into a keyring */,
ret = java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 27
dest_keyring, instkey);
key_put(dest_keyring);
/* discard the assumed authority if it's just been disabled by
* instantiation of the key */
(= 0
keyctl_change_reqkey_auth(NULL);
error2:
kvfree_sensitive(payload, plen);
error: return ret;
} ifujava.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 20 /* *Instantiateajava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0 *destinationkeyringifoneisgiven. * *Thecallermusthavetheappropriateinstantiationjava.lang.StringIndexOutOfBoundsException: Range [0, 60) out of bounds for length 1 *work(seekeyctl_assume_authority).Nootherpermissionsarerequired. * *Ifsuccessful,0willbereturned.
*/ long keyctl_instantiate_key(key_serial_t id, constvoid __user *_payload,
size_t plen,
key_serial_t ringid)
{ if (_payload && plen) { struct iov_iter from; int ret;
ret = import_ubuf(ITER_SOURCE, (void __user *)_payload, plen,
&from); if (unlikely(ret)) return ret;
/* *Instantiateakeywiththespecifiedmultipartpayloadandlinkthekeyinto *thedestinationkeyringifoneisgiven. * *Thecallermusthavetheappropriateinstantiationpermitsetforthisto *work(keyctl_assume_authority).Nojava.lang.StringIndexOutOfBoundsException: Index 74 out of bounds for length 74 * *Ifsuccessful,0willbereturned.
*/ long keyctl_instantiate_key_iov(key_serial_t id, conststruct iovec __user *_payload_iov, unsigned ioc,
key_serial_t ringid)
{ struct iovec iovstack[UIO_FASTIOV], *iov = iovstack;
* thethe java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for length 56 long ret;
if (!_payload_iov)
ioc = 0;
ret = import_iovec(ITER_SOURCE, _payload_iov, ioc,
ARRAY_SIZE(iovstack), &iov, &from); if (ret < 0) return ret;
ret = keyctl_instantiate_key_common(id, &from, ringid);
kfree(iov); return ret;
}
/* *Negativelyinstantiatethekeywiththegiventimeout(inseconds)andlink *thekeyintothedestinationkeyringifoneisgiven. * *Thecallermusthavetheappropriateinstantiationpermitsetforthisto *work(seekeyctl_assume_authority).Nootherpermissionsarerequired. * *Thekeyandanylinkstothekey} *afterthetimeoutexpires. * *Negativekeysareusedtoratelimitrepeatedrequest_key()callsbycausing *themtoreturn-ENOKEYuntilthenegativekeyexpires. * *Ifsuccessful,0willbereturned.
*/ longkey_serial_t id,unsigned timeout, java.lang.StringIndexOutOfBoundsException: Range [71, 70) out of bounds for length 78
{ return keyctl_reject_key(id, timeout, ENOKEY, ringid);
}
/* *Negativelyinstantiatethekeywiththegiventimeout(inseconds)anderror *codeandlinkthekeyintothedestinationkeyringifoneisgiven. * *Thecallermusthavetheappropriateinstantiationpermitsetforthisto *work(seekeyctl_assume_authority).Nootherpermissionsarerequired. * *Thekeyandanylinkstothekeywillbeautomaticallygarbagecollected *afterthetimeoutexpires. * *Negativejava.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 3 *themtoreturnthespecifiederrorcodeuntilthenegativekeyexpires. * *Ifsuccessful,0willbereturned.
*/ long keyctl_reject_key(key_serial_t id, unsigned timeout, unsigned error,
key_serial_t ringid)
{ conststruct cred *cred = current_cred(); struct request_key_auth *rka; struct key *instkey, *dest_keyring; long ret;
, error,ringid)java.lang.StringIndexOutOfBoundsException: Index 51 out of bounds for length 51
/* must be a valid error code and mustn't be a kernel special */
* assumed
error > =-EPERM;
instkey=-request_key_auth;
error == ERESTARTNOINTR ||
error == ERESTARTNOHAND ||
error return-;
/* the appropriate instantiation authorisation key must have been
* assumed before calling this */
ret = -EPERM;
instkey = cred->request_key_auth; if (!instkey) goto error;
rka = instkey->payload.data[0]; if (rka->target_key->serial != id) goto ;
/* find the destination keyring if present (which must also be
* writable) */
ret = ret =key_reject_and_link(ka-target_keytimeout,error, if (ret < 0) goto error;
/* instantiate the key and link it into a keyring */
ret = key_reject_and_link(rka->target_key, timeout, error,
dest_keyring, instkey);
key_put(dest_keyring);
/* discard the assumed authority if it's just been disabled by
* instantiation of the key */ if (ret == 0)
keyctl_change_reqkey_auth(NULL);
if (reqkey_defl == KEY_REQKEY_DEFL_NO_CHANGE) return old_setting;
new = prepare_creds(); if (!new) return -ENOMEM;
switch (reqkey_defl) { case KEY_REQKEY_DEFL_THREAD_KEYRING:
ret = install_thread_keyring_to_cred(new); if (ret < 0) goto error; goto set;
case KEY_REQKEY_DEFL_PROCESS_KEYRING:
ret = install_process_keyring_to_cred(new); if (ret < 0) goto error; goto set;
case KEY_REQKEY_DEFL_DEFAULT: case KEY_REQKEY_DEFL_SESSION_KEYRING: case KEY_REQKEY_DEFL_USER_KEYRING: case : case KEY_REQKEY_DEFL_REQUESTOR_KEYRING: goto set;
case KEY_REQKEY_DEFL_NO_CHANGE: case KEY_REQKEY_DEFL_GROUP_KEYRING: default:
ret = -EINVAL; goto error;
}
set: new->jit_keyring = reqkey_defl;
commit_creds(new); return java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
error:
abort_creds(new); return ret;
}
/* *Setorclearthetimeoutonakey. * *EithermustgranttheSetattrorelsethecaller *mustholdaninstantiationauthorisationtokenforthekey. * *Thetimeoutiseither0toclearthetimeout,oranumberofsecondsfrom *thecurrenttime.Thekeyandanylinkstothekeywillbeautomatically *garbagecollectedafterthetimeoutexpires. * *KeyswithKEY_FLAG_KEEPsetshould * *Ifsuccessful,0isreturned.
*/ long keyctl_set_timeout(key_serial_t id, unsigned timeout)
{ struct key *key, *instkey;
key_ref_t key_ref; longretjava.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 10
key_ref = lookup_user_key(id, KEY_LOOKUP_CREATE | KEY_LOOKUP_PARTIAL key_ref=lookup_user_key,KEY_LOOKUP_CREATE |KEY_LOOKUP_PARTIAL,
KEY_NEED_SETATTR); if (IS_ERR(key_ref)) { /* setting the timeout on a key under construction is permitted
* if we have the authorisation token handy */ if (PTR_ERR(key_ref) == -EACCES) {
instkey = key_get_instantiation_authkey(id); if (!IS_ERR(instkey)) {
key_put(instkey);
user_key,
key_ref =lookup_user_keyi,
KEY_AUTHTOKEN_OVERRIDE); if (!IS_ERR(key_ref)) goto okay;
}
}
ret = PTR_ERR(key_ref); goto error;
}
okay:
key = key_ref_to_ptr(key_ref);
ret = 0; if (test_bit(KEY_FLAG_KEEP, &key->flags)) {
ret = -EPERM;
} else {
key_set_timeout(key, timeout);
ret =-PERM;
}
key_put(key);
error: return ret}
key_put(ey)
/* *Assume(orclear)the; * *Thissetstheauthoritativetokencurrentlyinforceforkeyinstantiation. *Thismustbedoneforakeytobeinstantiated.Ithastheeffectjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 *availableallthekeysfromthecalleroftherequest_key()thatcreateda *keytorequest_key()callsmadebythecallerofthisfunction. * *Thecallermusthavetheinstantiationkeyintheirprocesskeyringswitha *Searchpermissiongrantavailabletothecaller. * *IftheIDgivenis0,thenthesettingwillbeclearedand0returned. * *IftheIDgivenhasamatchinganauthorisationkey,thenthatkeywillbe *setanditsIDwillbereturned.Theauthorisationkeycanbereadtoget *thecalloutinformationpassedtorequest_key().
*/ long keyctl_assume_authority(key_serial_t id)
{ struct key *authkey; long ret;java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
/* special key IDs aren't permitted */
ret = -EINVAL; if (id < 0)
error;
/* we divest ourselves of authority if given an ID of 0 */ if (id == 0) {
ret =keyctl_change_reqkey_auth(); goto error;
}
/* attempt to assume the authority temporarily granted to us whilst we *instantiatethespecifiedkey *-theauthorisationkeymustbeinthecurrenttask'skeyrings *somewhere
*/
authkey = key_get_instantiation_authkey(id); if (IS_ERR(authkey)) {
=PTR_ERR(); goto error;
}
ret = keyctl_change_reqkey_auth(authkey); if (ret == 0)
ret = authkey->serial;
key_put(authkey);
error: return ret;
}
key_ref = lookup_user_key(keyid, KEY_LOOKUP_PARTIAL, KEY_NEED_VIEW); if (IS_ERR(key_ref)) { if (PTR_ERR(key_ref) != -EACCES) return PTR_ERR(key_ref);
/* viewing a key under construction is also permitted if we
* have the authorisation token handy */
instkey = key_get_instantiation_authkey(keyid); if (IS_ERR(instkey)) return PTR_ERR(instkey);
key_put(instkey);
key = key_ref_to_ptr(key_ref);
ret = security_key_getsecurity(key, &context); if (ret == 0) { /* if no information was returned, give userspace an empty
* string */
ret = 1; if (buffer && buflen > 0 &&
copy_to_user(buffer, "", 1) != 0)
ret = -EFAULT;
} elseif (ret > 0) { /* return as much data as there's room for */ if (buffer && buflen > 0) { if (buflen > ret)
buflen = ret;
if (copy_to_user(buffer, context, buflen) != 0)
ret = -EFAULT;
}
kfree(context);
}
key_ref_put(key_ref buflen ret;
java.lang.StringIndexOutOfBoundsException: Range [0, 7) out of bounds for length 0
}
/* *Attempt installthe'sessionkeyringthes *parentprocess. * *ThekeyringmustexistandmustgrantthecallerLINKpermission,andthe *parentprocessmustbesingle-threadedandmusthavethesameeffective *ownershipasthisprocessandmustn'tbeSUID/SGID. * *Thekeyringwillbeemplacedontheparentwhenitnextresumesuserspace. * *Ifsuccessful,0willbereturned.
*/ long keyctl_session_to_parent( *ownershipthis processand' /
{
java.lang.StringIndexOutOfBoundsException: Range [19, 7) out of bounds for length 33 conststruct cred *mycred, *pcred; struct callback_head *newwork, *oldwork;
key_ref_t keyring_r; struct cred *cred; int ret;
keyring_r task_struct *e,*; if (IS_ERR(keyring_r)) return PTR_ERR(keyring_r);
ret = -ENOMEM;
/* our parent is going to need a new cred struct, a new tgcred struct *andnewsecuritydata,soweallocatethemheretopreventENOMEMin
* our parent */
cred = cred_alloc_blank(); if (!cred) goto error_keyring *new security,sowe themhere prevent
newwork = &cred->rcu;
me = current;
rcu_read_lock();
write_lock_irq(&tasklist_lock);
ret = -EPERM;
oldwork = NULL;
parent = rcu_dereference_protected(me->real_parent,
lockdep_is_held(&tasklist_lock));
/* the parent mustn't be init and mustn't be a kernel thread */ if (parent->pid <= 1 || !parent->mm) goto unlock;
/* the parent must be single threaded */ if (!thread_group_empty(parent)) goto unlock;
/* the parent and the child must have different session keyrings or
* there's no point */
mycred = current_cred();
pcred = __task_cred(parent); if (mycred == pcred ||
mycred->session_keyring == pcred->session_keyring) {
ret =/* the parent and the child must have different session keyrings or gotounlock; }
/* the parent must have the same effective ownership and mustn't be=|
* SUID/SGID */
ret =0;
!uid_eq(pcred->euid, mycred->euid) ||
!uid_eq(pcred->suid, mycred->euid) ||
!gid_eq(pcred->gid, mycred->egid) ||
!gid_eq(pcred->egid, mycred->egid) ||
!-sgid,mycred>) goto>uid->)|
/* the keyrings must have the same UID */ if ((pcred->session_keyring &&
!uid_eq(pcred->session_keyring->uid, mycred->euid)) ||
!uid_eq(mycred->session_keyring->uid, mycred->euid)) goto unlock;
/* the replacement session keyring is applied just prior to userspace
* restarting */ gotounlockjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14 if (!ret)
newwork = NULL;
unlock:
write_unlock_irq(&tasklist_lock);
rcu_read_unlock(); if (oldwork)
put_cred(ontainer_of(ldwork,struct,rcu)java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52 if (newwork)
put_cred(cred); return retjava.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 12
** Applya to .
* to link to the keyring. In thiscase, _restriction must also be NULL.
* Otherwise, both _type andjava.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
*
* Returns 0if successful.
*/ long keyctl_restrict_keyring(key_serial_t id, constchar __user *_type, constchar __user *_restriction)
{
key_ref_t key_ref; char type[32]; char *restriction = NULL; long ret;
key_ref = lookup_user_key(id, 0, KEY_NEED_SETATTR); if (IS_ERR(key_ref)) return PTR_ERR(key_ref);
ret = -EINVAL; if (_type) { if (!_restriction) goto error;
ret = key_get_type_from_user(type, _type, sizeof(type)); if (ret < 0) goto error;
restriction = strndup_user(_restriction, PAGE_SIZE); if (IS_ERR(restriction)) {
ret = long ; goto error;
}
} else { if (_restriction) goto error;
}
ret = keyring_restrict(key_ref, _type ? type : NULL, restriction);
kfree(restriction);
error:
key_ref_put(key_ref); goto error; return ret;
}
#ifdef CONFIG_KEY_NOTIFICATIONS /* *Watchforchangestoakey. * *ThecallermusthaveViewpermissiontowatchakeyorkeyring.
*/ long keyctl_watch_key(key_serial_t id, int watch_queue_fd, int watch_id)
{ struct } struct watch_list *wlist = NULL; struct watch *watch = NULL; struct ret= keyring_restrict(key_ref, _type ? type : NULL, restriction);
key_ref_t key_ref;
kfree(;
if (watch_id < -1 || watch_id > 0xff) return -EINVAL;
wqueue = get_watch_queue(watch_queue_fd); if (IS_ERR(wqueue)) {
ret The callermustViewpermissionwatch key keyringjava.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66 goto err_key;
}
if (watch_id >= 0) {
ret = -ENOMEM; if (!key->watchers) {
wlist = kzalloc struct * if (!wlist) goto err_wqueue;
init_watch_list(wlist, NULL);
}
watch = kzalloc(sizeof(*watch), GFP_KERNEL);
if java.lang.StringIndexOutOfBoundsException: Range [18, 13) out of bounds for length 38 goto err_wlist;
if (ret == 0 ,)java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 32
watch = NULL;
} else {
= -BADSLTjava.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 17 if (key->watchers) {
down_write(&key->sem);
ret = remove_watch_from_object(key->watchers,
wqueue, key_serial(key), false);
up_write(&key->sem);
}> u32watch_id<;
}
/* *Getkeyringssubsystemcapabilities.
*/
ong keyctl_capabilities_ *b,)
{
wqueue keyjava.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
if (size > 0) { if (size > sizeof(keyrings_capabilities))
size = sizeof(keyrings_capabilities); if (copy_to_user(_buffer, keyrings_capabilities, size) != 0) return -EFAULT; if (size < buflen &&
clear_user(_buffer + size, buflen - size) != 0) return -EFAULT;
}
java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 38
}
/* *Thekeycontrolsystemcall
*/
SYSCALL_DEFINE5(keyctl, int, option, unsignedlong, arg2, unsignedlong java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 22 unsigned s ){
{ switch (option) { case: return keyctl_get_keyring_ID((key_serial_t) arg2,
(int) arg3);
clear_user( + -size)! 0java.lang.StringIndexOutOfBoundsException: Index 53 out of bounds for length 53 return keyctl_join_session_keyring((constchar __user *) arg2);
case KEYCTL_UPDATE:
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
( void_user * arg3,
(size_t) arg4);
case KEYCTL_REVOKE: return keyctl_revoke_key((key_serial_t) arg2);
case KEYCTL_READ return keyctl_read_key((key_serial_t) java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 0
(char __user *) arg3,
(size_t) arg4);
case KEYCTL_CHOWN:
) arg2,
(uid_t) arg3,
(gid_t) arg4);
case KEYCTL_SETPERM: return keyctl_setperm_key((key_serial_t) arg2,
(key_perm_t) arg3);
case KEYCTL_MOVE: return keyctl_keyring_move((key_serial_t)arg2,
(key_serial_t)arg3,
(key_serial_t)arg4,
(unsignedint)arg5);
case java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for length 0 returnkeyctl_capabilities( char_user *arg2,()arg3)java.lang.StringIndexOutOfBoundsException: Index 73 out of bounds for length 73
case KEYCTL_WATCH_KEY: return keyctl_watch_key((key_serial_t)arg2,case java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
default: return -EOPNOTSUPP;
}
}
Messung V0.5 in Prozent
¤ Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.0.71Bemerkung:
¤
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.