CVE-2022-49731
In the Linux kernel, the following vulnerability has been resolved: ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo() In an unlikely (and probably wrong?) case that the 'ppi' parameter of ata_host_alloc_pinfo() points to an array…
Does this matter?
Lower severity and a low EPSS score (0.28%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo() In an unlikely (and probably wrong?) case that the 'ppi' parameter of ata_host_alloc_pinfo() points to an array starting with a NULL pointer, there's going to be a kernel oops as the 'pi' local variable won't get reassigned from the initial value of NULL. Initialize 'pi' instead to '&ata_dummy_port_info' to fix the possible kernel oops for good... Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.28% probability · 20th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/07cbdb4807d369fbda73062a91b570c4dc5ec429Patch
- https://git.kernel.org/stable/c/1ac5efee33f29e704226506d429b84575a5d66f8Patch
- https://git.kernel.org/stable/c/253334f84c81bc6a43af489f108c0bddad989eefPatch
- https://git.kernel.org/stable/c/36cd19e7d4e5571d77a2ed20c5b6ef50cf57734aPatch
- https://git.kernel.org/stable/c/a810bd5af06977a847d1f202b22d7defd5c62497Patch
- https://git.kernel.org/stable/c/bf476fe22aa1851bab4728e0c49025a6a0bea307Patch
- https://git.kernel.org/stable/c/ca4693e6e06e4fd2b240c0fec47aa2498c94848ePatch
- https://git.kernel.org/stable/c/ff128fbea720bf763fa345680dda5f050bc24a47Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.