CVE-2024-50081
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-50081
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-50081.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-50081
- Downstream
- Related
- Published
- 2024-10-29T00:50:23.608Z
- Modified
- 2025-11-20T06:15:48.394635Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- blk-mq: setup queue ->tag_set before initializing hctx
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
blk-mq: setup queue ->tag_set before initializing hctx
Commit 7b815817aa58 ("blk-mq: add helper for checking if one CPU is mapped to specified hctx") needs to check queue mapping via tag set in hctx's cpuhp handler.
However, q->tag_set may not be setup yet when the cpuhp handler is enabled, then kernel oops is triggered.
Fix the issue by setup queue tag_set before initializing hctx.
- References
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced7b815817aa58d2e2101feb2fcf64c60cae0b2695Fixedd28b256db525d9432bc3eb2c8d83f7d3f5e1cc87
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced7b815817aa58d2e2101feb2fcf64c60cae0b2695Fixedc25c0c9035bb8b28c844dfddeda7b8bdbcfcae95
Affected versions
v6.*
v6.10
v6.10-rc1
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
v6.11
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.11-rc4
v6.11-rc5
v6.11-rc6
v6.11-rc7
v6.11.1
v6.11.2
v6.11.3
v6.11.4
v6.12-rc1
Database specific
vanir_signatures
[
{
"id": "CVE-2024-50081-36aca42f",
"signature_version": "v1",
"digest": {
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"function_hash": "319738523143345548788558283396884591720"
},
"deprecated": false,
"signature_type": "Function",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87",
"target": {
"file": "block/blk-mq.c",
"function": "blk_mq_init_allocated_queue"
}
},
{
"id": "CVE-2024-50081-3ca7c1ae",
"signature_version": "v1",
"digest": {
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"target": {
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}
},
{
"id": "CVE-2024-50081-c53f5c06",
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"digest": {
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"target": {
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},
{
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"signature_version": "v1",
"digest": {
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"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95",
"target": {
"file": "block/blk-mq.c",
"function": "blk_mq_init_allocated_queue"
}
}
]