bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again
In the Linux kernel, the following vulnerability has been resolved: bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again Commit 028ddcac477b ("bcache: Remove unnecessary NULL point check in node allocations") leads a NULL pointer deference in cache_set_flush(). 1721 if (!IS_ERR_OR_NULL(c->root)) 1722 list_add(&c->root->list, &c->btree_cache); >From the above code in cache_set_flush(), if previous registration code fails before allocating c->root, it is possible c->root is NULL as what it is initialized. __bch_btree_node_alloc() never returns NULL but c->root is possible to be NULL at above line 1721. This patch replaces IS_ERR() by IS_ERR_OR_NULL() to fix this.
CVE-2024-48881
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-2024-48881
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": "0729029e647234fa1a94376b6edffec5c2cd75f6",
"lessThan": "4379c5828492a4c2a651c8f826a01453bd2b80b0",
"versionType": "git"
},
{
"status": "affected",
"version": "db9439cef0b5efccf8021fe89f4953e0f901e85b",
"lessThan": "336e30f32ae7c043fde0f6fa21586ff30bea9fe2",
"versionType": "git"
},
{
"status": "affected",
"version": "991e9c186a8ac6ab272a86e0ddc6f9733c38b867",
"lessThan": "fb5fee35bdd18316a84b5f30881a24e1415e1464",
"versionType": "git"
},
{
"status": "affected",
"version": "68118c339c6e1e16ae017bef160dbe28a27ae9c8",
"lessThan": "5202391970ffbf81975251b3526b890ba027b715",
"versionType": "git"
},
{
"status": "affected",
"version": "028ddcac477b691dd9205c92f991cc15259d033e",
"lessThan": "cc05aa2c0117e20fa25a3c0d915f98b8f2e78667",
"versionType": "git"
},
{
"status": "affected",
"version": "028ddcac477b691dd9205c92f991cc15259d033e",
"lessThan": "5e0e913624bcd24f3de414475018d3023f060ee1",
"versionType": "git"
},
{
"status": "affected",
"version": "028ddcac477b691dd9205c92f991cc15259d033e",
"lessThan": "b2e382ae12a63560fca35050498e19e760adf8c0",
"versionType": "git"
},
{
"status": "affected",
"version": "fe75e8a0c20127a8dc95704f1a7ad6b82c9a0ef8",
"versionType": "git"
},
{
"status": "affected",
"version": "0cabf9e164660e8d66c4810396046383a1110a69",
"versionType": "git"
},
{
"status": "affected",
"version": "5.4.251",
"lessThan": "5.4.287",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.10.188",
"lessThan": "5.10.231",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.15.121",
"lessThan": "5.15.174",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.1.39",
"lessThan": "6.1.120",
"versionType": "semver"
},
{
"status": "affected",
"version": "4.19.291",
"lessThan": "4.20",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.4.4",
"lessThan": "6.5",
"versionType": "semver"
}
],
"programFiles": [
"drivers/md/bcache/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": "6.5"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.5",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.4.287",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.231",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.174",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.120",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.66",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.5",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.13",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/md/bcache/super.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-48881
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26743 · Revision 1
- Added to Heist Feed
- Publisher date