gfs2: Fix NULL pointer dereference in gfs2_log_flush
In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix NULL pointer dereference in gfs2_log_flush In gfs2_jindex_free(), set sdp->sd_jdesc to NULL under the log flush lock to provide exclusion against gfs2_log_flush(). In gfs2_log_flush(), check if sdp->sd_jdesc is non-NULL before dereferencing it. Otherwise, we could run into a NULL pointer dereference when outstanding glock work races with an unmount (glock_work_func -> run_queue -> do_xmote -> inode_go_sync -> gfs2_log_flush).
CVE-2024-42079
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-2024-42079
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": "82218943058d5e3fe692a38b5a549479738dab33",
"lessThan": "c3c5cfa3170c0940bc66a142859caac07d19b9d6",
"versionType": "git"
},
{
"status": "affected",
"version": "82218943058d5e3fe692a38b5a549479738dab33",
"lessThan": "5f6a84cfb33b34610623857bd93919dcb661e29b",
"versionType": "git"
},
{
"status": "affected",
"version": "82218943058d5e3fe692a38b5a549479738dab33",
"lessThan": "3429ef5f50909cee9e498c50f0c499b9397116ce",
"versionType": "git"
},
{
"status": "affected",
"version": "82218943058d5e3fe692a38b5a549479738dab33",
"lessThan": "f54f9d5368a4e92ede7dd078a62788dae3a7c6ef",
"versionType": "git"
},
{
"status": "affected",
"version": "82218943058d5e3fe692a38b5a549479738dab33",
"lessThan": "35264909e9d1973ab9aaa2a1b07cda70f12bb828",
"versionType": "git"
}
],
"programFiles": [
"fs/gfs2/log.c",
"fs/gfs2/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": "5.12"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.12",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.15.200",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.162",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.37",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.9.8",
"versionType": "semver",
"lessThanOrEqual": "6.9.*"
},
{
"status": "unaffected",
"version": "6.10",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/gfs2/log.c",
"fs/gfs2/super.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-42079
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26662 · Revision 1
- Added to Heist Feed
- Publisher date