5.5

CVE-2022-49731

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

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.9.320
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.285
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.249
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.200
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.124
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.49
Linux ≫ Linux Kernel Version >= 5.16 < 5.18.6
Linux ≫ Linux Kernel Version5.19 Updaterc1
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.28% 0.193
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/07cbdb4807d369fbda73062a91b570c4dc5ec429
Patch
https://git.kernel.org/stable/c/1ac5efee33f29e704226506d429b84575a5d66f8
Patch
https://git.kernel.org/stable/c/253334f84c81bc6a43af489f108c0bddad989eef
Patch
https://git.kernel.org/stable/c/36cd19e7d4e5571d77a2ed20c5b6ef50cf57734a
Patch
https://git.kernel.org/stable/c/a810bd5af06977a847d1f202b22d7defd5c62497
Patch
https://git.kernel.org/stable/c/bf476fe22aa1851bab4728e0c49025a6a0bea307
Patch
https://git.kernel.org/stable/c/ca4693e6e06e4fd2b240c0fec47aa2498c94848e
Patch
https://git.kernel.org/stable/c/ff128fbea720bf763fa345680dda5f050bc24a47
Patch