CVE-2022-49731

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Source
https://cve.org/CVERecord?id=CVE-2022-49731
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49731.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-49731
Downstream
Related
Published
2025-02-26T02:24:41.300Z
Modified
2026-03-12T03:25:43.429713Z
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
ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo()
Details

In the Linux kernel, the following vulnerability has been resolved:

ata: libata-core: fix NULL pointer deref in atahostalloc_pinfo()

In an unlikely (and probably wrong?) case that the 'ppi' parameter of atahostallocpinfo() 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 '&atadummyportinfo' to fix the possible kernel oops for good...

Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49731.json"
}
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
Introduced
f5cda257296fbd3683b1f568f2d94d3caaacf74d
Fixed
ca4693e6e06e4fd2b240c0fec47aa2498c94848e
Fixed
1ac5efee33f29e704226506d429b84575a5d66f8
Fixed
a810bd5af06977a847d1f202b22d7defd5c62497
Fixed
253334f84c81bc6a43af489f108c0bddad989eef
Fixed
36cd19e7d4e5571d77a2ed20c5b6ef50cf57734a
Fixed
ff128fbea720bf763fa345680dda5f050bc24a47
Fixed
07cbdb4807d369fbda73062a91b570c4dc5ec429
Fixed
bf476fe22aa1851bab4728e0c49025a6a0bea307

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49731.json"