CVE-2022-49651
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved:
srcu: Tighten cleanup_srcu_struct() GP checks
Currently, cleanup_srcu_struct() checks for a grace period in progress, but it does not check for a grace period that has not yet started but which might start at any time. Such a situation could result in a use-after-free bug, so this commit adds a check for a grace period that is needed but not yet started to cleanup_srcu_struct().
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | da915ad5cf25b5f5d358dd3670c3378d8ae8c03e < e997dda6502eefbc1032d6b0da7b353c53344b07 | affected |
| Linux | Linux | da915ad5cf25b5f5d358dd3670c3378d8ae8c03e < 8ed00760203d8018bee042fbfe8e076579be2c2b | affected |
| Linux | Linux | 4.12 | affected |
| Linux | Linux | 0 < 4.12 | unaffected |
| Linux | Linux | 5.18.11 <= 5.18.* | unaffected |
| Linux | Linux | 5.19 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://git.kernel.org/stable/c/e997dda6502eefbc1032d6b0da7b353c53344b07
- https://git.kernel.org/stable/c/8ed00760203d8018bee042fbfe8e076579be2c2b
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.