ext4: avoid journaling sb update on error if journal is destroying
In the Linux kernel, the following vulnerability has been resolved: ext4: avoid journaling sb update on error if journal is destroying Presently we always BUG_ON if trying to start a transaction on a journal marked with JBD2_UNMOUNT, since this should never happen. However, while ltp running stress tests, it was observed that in case of some error handling paths, it is possible for update_super_work to start a transaction after the journal is destroyed eg: (umount) ext4_kill_sb kill_block_super generic_shutdown_super sync_filesystem /* commits all txns */ evict_inodes /* might start a new txn */ ext4_put_super flush_work(&sbi->s_sb_upd_work) /* flush the workqueue */ jbd2_journal_destroy journal_kill_thread journal->j_flags |= JBD2_UNMOUNT; jbd2_journal_commit_transaction jbd2_journal_get_descriptor_buffer jbd2_journal_bmap ext4_journal_bmap ext4_map_blocks ... ext4_inode_error ext4_handle_error schedule_work(&sbi->s_sb_upd_work) /* work queue kicks in */ update_super_work jbd2_journal_start start_this_handle BUG_ON(journal->j_flags & JBD2_UNMOUNT) Hence, introduce a new mount flag to indicate journal is destroying and only do a journaled (and deferred) update of sb if this flag is not set. Otherwise, just fallback to an un-journaled commit. Further, in the journal destroy path, we have the following sequence: 1. Set mount flag indicating journal is destroying 2. force a commit and wait for it 3. flush pending sb updates This sequence is important as it ensures that, after th
CVE-2025-22113
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-2025-22113
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": "2d01ddc86606564fb08c56e3bc93a0693895f710",
"lessThan": "b6d27f4869c9c4dedce0ba1c719d6c748a4ecc68",
"versionType": "git"
},
{
"status": "affected",
"version": "2d01ddc86606564fb08c56e3bc93a0693895f710",
"lessThan": "eddca44ddf810e27f0c96913aa3cc92ebd679ddb",
"versionType": "git"
},
{
"status": "affected",
"version": "2d01ddc86606564fb08c56e3bc93a0693895f710",
"lessThan": "db05767b5bc307143d99fe2afd8c43af58d2ebef",
"versionType": "git"
},
{
"status": "affected",
"version": "2d01ddc86606564fb08c56e3bc93a0693895f710",
"lessThan": "ce2f26e73783b4a7c46a86e3af5b5c8de0971790",
"versionType": "git"
}
],
"programFiles": [
"fs/ext4/ext4.h",
"fs/ext4/ext4_jbd2.h",
"fs/ext4/super.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.11"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.11",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.46",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.14.2",
"versionType": "semver",
"lessThanOrEqual": "6.14.*"
},
{
"status": "unaffected",
"version": "6.15",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/ext4/ext4.h",
"fs/ext4/ext4_jbd2.h",
"fs/ext4/super.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-22113
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #45960 · Revision 1
- Added to Heist Feed
- Publisher date