fs: quota: create dedicated workqueue for quota_release_work
In the Linux kernel, the following vulnerability has been resolved: fs: quota: create dedicated workqueue for quota_release_work There is a kernel panic due to WARN_ONCE when panic_on_warn is set. This issue occurs when writeback is triggered due to sync call for an opened file(ie, writeback reason is WB_REASON_SYNC). When f2fs balance is needed at sync path, flush for quota_release_work is triggered. By default quota_release_work is queued to "events_unbound" queue which does not have WQ_MEM_RECLAIM flag. During f2fs balance "writeback" workqueue tries to flush quota_release_work causing kernel panic due to MEM_RECLAIM flag mismatch errors. This patch creates dedicated workqueue with WQ_MEM_RECLAIM flag for work quota_release_work. ------------[ cut here ]------------ WARNING: CPU: 4 PID: 14867 at kernel/workqueue.c:3721 check_flush_dependency+0x13c/0x148 Call trace: check_flush_dependency+0x13c/0x148 __flush_work+0xd0/0x398 flush_delayed_work+0x44/0x5c dquot_writeback_dquots+0x54/0x318 f2fs_do_quota_sync+0xb8/0x1a8 f2fs_write_checkpoint+0x3cc/0x99c f2fs_gc+0x190/0x750 f2fs_balance_fs+0x110/0x168 f2fs_write_single_data_page+0x474/0x7dc f2fs_write_data_pages+0x7d0/0xd0c do_writepages+0xe0/0x2f4 __writeback_single_inode+0x44/0x4ac writeback_sb_inodes+0x30c/0x538 wb_writeback+0xf4/0x440 wb_workfn+0x128/0x5d4 process_scheduled_works+0x1c4/0x45c worker_thread+0x32c/0x3e8 kthread+0x11c/0x1b0 ret_from_fork+0x10/0x20 Kernel panic - not syncing: kernel: panic_on_warn set ...
CVE-2025-40196
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-2025-40196
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": "3e6ff207cd5bd924ad94cd1a7c633bcdac0ba1cb",
"lessThan": "8df2eedd371a1c24ecc4283581299d7737dfcd06",
"versionType": "git"
},
{
"status": "affected",
"version": "bcacb52a985f1b6d280f698a470b873dfe52728a",
"lessThan": "f846eacde280ecc3daedfe001580e3033565179e",
"versionType": "git"
},
{
"status": "affected",
"version": "8ea87e34792258825d290f4dc5216276e91cb224",
"lessThan": "f12039df1515d5daf7d92e586ece5cefeb39561b",
"versionType": "git"
},
{
"status": "affected",
"version": "ac6f420291b3fee1113f21d612fa88b628afab5b",
"lessThan": "8a09a62f0c8c6123c2f1864ed6d5f9eb144afaf0",
"versionType": "git"
},
{
"status": "affected",
"version": "ac6f420291b3fee1113f21d612fa88b628afab5b",
"lessThan": "72b7ceca857f38a8ca7c5629feffc63769638974",
"versionType": "git"
},
{
"status": "affected",
"version": "a5abba5e0e586e258ded3e798fe5f69c66fec198",
"versionType": "git"
},
{
"status": "affected",
"version": "6f3821acd7c3143145999248087de5fb4b48cf26",
"versionType": "git"
},
{
"status": "affected",
"version": "ab6cfcf8ed2c7496f55d020b65b1d8cd55d9a2cb",
"versionType": "git"
},
{
"status": "affected",
"version": "6.1.120",
"lessThan": "6.1.178",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.6.64",
"lessThan": "6.6.114",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.12.4",
"lessThan": "6.12.54",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.4.287",
"lessThan": "5.5",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.10.231",
"lessThan": "5.11",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.15.174",
"lessThan": "5.16",
"versionType": "semver"
}
],
"programFiles": [
"fs/quota/dquot.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.13"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.13",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.1.178",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.114",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.54",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.17.4",
"versionType": "semver",
"lessThanOrEqual": "6.17.*"
},
{
"status": "unaffected",
"version": "6.18",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/quota/dquot.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-40196
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #27085 · Revision 1
- Added to Heist Feed
- Publisher date