nfsd: put dl_stid if fail to queue dl_recall
In the Linux kernel, the following vulnerability has been resolved: nfsd: put dl_stid if fail to queue dl_recall Before calling nfsd4_run_cb to queue dl_recall to the callback_wq, we increment the reference count of dl_stid. We expect that after the corresponding work_struct is processed, the reference count of dl_stid will be decremented through the callback function nfsd4_cb_recall_release. However, if the call to nfsd4_run_cb fails, the incremented reference count of dl_stid will not be decremented correspondingly, leading to the following nfs4_stid leak: unreferenced object 0xffff88812067b578 (size 344): comm "nfsd", pid 2761, jiffies 4295044002 (age 5541.241s) hex dump (first 32 bytes): 01 00 00 00 6b 6b 6b 6b b8 02 c0 e2 81 88 ff ff ....kkkk........ 00 6b 6b 6b 6b 6b 6b 6b 00 00 00 00 ad 4e ad de .kkkkkkk.....N.. backtrace: kmem_cache_alloc+0x4b9/0x700 nfsd4_process_open1+0x34/0x300 nfsd4_open+0x2d1/0x9d0 nfsd4_proc_compound+0x7a2/0xe30 nfsd_dispatch+0x241/0x3e0 svc_process_common+0x5d3/0xcc0 svc_process+0x2a3/0x320 nfsd+0x180/0x2e0 kthread+0x199/0x1d0 ret_from_fork+0x30/0x50 ret_from_fork_asm+0x1b/0x30 unreferenced object 0xffff8881499f4d28 (size 368): comm "nfsd", pid 2761, jiffies 4295044005 (age 5541.239s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 30 4d 9f 49 81 88 ff ff ........0M.I.... 30 4d 9f 49 81 88 ff ff 20 00 00 00 01 00 00 00 0M.I.... ....... backtrace: kmem_cache_alloc+0x4b9/0x700 nfs4_alloc_stid+0x29/0x210 alloc_init_deleg+0x92/0x2e0 nfs4_set_del
CVE-2025-22025
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2025-22025
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf",
"lessThan": "b874cdef4e67e5150e07eff0eae1cbb21fb92da1",
"versionType": "git"
},
{
"status": "affected",
"version": "b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf",
"lessThan": "cdb796137c57e68ca34518d53be53b679351eb86",
"versionType": "git"
},
{
"status": "affected",
"version": "b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf",
"lessThan": "d96587cc93ec369031bcd7658c6adc719873c9fd",
"versionType": "git"
},
{
"status": "affected",
"version": "b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf",
"lessThan": "9a81cde8c7ce65dd90fb47ceea93a45fc1a2fbd1",
"versionType": "git"
},
{
"status": "affected",
"version": "b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf",
"lessThan": "cad3479b63661a399c9df1d0b759e1806e2df3c8",
"versionType": "git"
},
{
"status": "affected",
"version": "b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf",
"lessThan": "63b91c8ff4589f5263873b24c052447a28e10ef7",
"versionType": "git"
},
{
"status": "affected",
"version": "b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf",
"lessThan": "133f5e2a37ce08c82d24e8fba65e0a81deae4609",
"versionType": "git"
},
{
"status": "affected",
"version": "b5a1a81e5c25fb6bb3fdc1812ba69ff6ab638fcf",
"lessThan": "230ca758453c63bd38e4d9f4a21db698f7abada8",
"versionType": "git"
}
],
"programFiles": [
"fs/nfsd/nfs4state.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.35"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.35",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.236",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.180",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.134",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.87",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.23",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.13.11",
"versionType": "semver",
"lessThanOrEqual": "6.13.*"
},
{
"status": "unaffected",
"version": "6.14.2",
"versionType": "semver",
"lessThanOrEqual": "6.14.*"
},
{
"status": "unaffected",
"version": "6.15",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/nfsd/nfs4state.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-22025
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30454 · Revision 1
- Added to Heist Feed
- Publisher date