5.5

CVE-2022-48879

efi: fix NULL-deref in init error path

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

efi: fix NULL-deref in init error path

In cases where runtime services are not supported or have been disabled,
the runtime services workqueue will never have been allocated.

Do not try to destroy the workqueue unconditionally in the unlikely
event that EFI initialisation fails to avoid dereferencing a NULL
pointer.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.19.142 < 4.19.270
Linux ≫ Linux Kernel Version >= 5.4.61 < 5.4.229
Linux ≫ Linux Kernel Version >= 5.9 < 5.10.164
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.89
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.7
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.148
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
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/4ca71bc0e1995d15486cd7b60845602a28399cb5
Patch
https://git.kernel.org/stable/c/585a0b2b3ae7903c6abee3087d09c69e955a7794
Patch
https://git.kernel.org/stable/c/5fcf75a8a4c3e7ee9122d143684083c9faf20452
Patch
https://git.kernel.org/stable/c/703c13fe3c9af557d312f5895ed6a5fda2711104
Patch
https://git.kernel.org/stable/c/adc96d30f6503d30dc68670c013716f1d9fcc747
Patch
https://git.kernel.org/stable/c/e2ea55564229e4bea1474af15b111b3a3043b76f
Patch