block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq
In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq Commit 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'") will access 'bic->bfqq' in bic_set_bfqq(), however, bfq_exit_icq_bfqq() can free bfqq first, and then call bic_set_bfqq(), which will cause uaf. Fix the problem by moving bfq_exit_bfqq() behind bic_set_bfqq().
CVE-2022-50329
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-2022-50329
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": "5533742c7cb1bc9b1f0bf401cc397d44a3a9e07a",
"lessThan": "1425f1bb5df5239021fd09ebc2a5e8070e705d36",
"versionType": "git"
},
{
"status": "affected",
"version": "094f3d9314d67691cb21ba091c1b528f6e3c4893",
"lessThan": "7949b0df3dd9f4817ed4a4e989fa9ee81df6205f",
"versionType": "git"
},
{
"status": "affected",
"version": "b22fd72bfebda3956efc4431b60ddfc0a51e03e0",
"lessThan": "cfe5b38c37720313eff0dec5517442c7ab3c9a20",
"versionType": "git"
},
{
"status": "affected",
"version": "761564d93c8265f65543acf0a576b32d66bfa26a",
"lessThan": "1ed959fef5b1c6f1a7a3fbea543698c30ebd6678",
"versionType": "git"
},
{
"status": "affected",
"version": "64dc8c732f5c2b406cc752e6aaa1bd5471159cab",
"lessThan": "246cf66e300b76099b5dbd3fdd39e9a5dbc53f02",
"versionType": "git"
}
],
"programFiles": [
"block/bfq-iosched.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.15.86",
"lessThan": "5.15.87",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.0.16",
"lessThan": "6.0.17",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.1.2",
"lessThan": "6.1.3",
"versionType": "semver"
}
],
"programFiles": [
"block/bfq-iosched.c"
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2022-50329
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30214 · Revision 1
- Added to Heist Feed
- Publisher date