CVE-2022-4127 — NULL Pointer Dereference in Kernel

CWE-476 — NULL Pointer Dereference6 documents6 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 86.33%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
8
Linux KernelDebian LinuxMsrc Cbl2 Kernel 5.15.82.1-1 ON CBL Mariner 2.0+5 more
Timeline
PublishedNov 28
Latest updateNov 29

Description

A NULL pointer dereference issue was discovered in the Linux kernel in io_files_update_with_index_alloc. A local user could use this flaw to potentially crash the system causing a denial of service.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages8 packages

▶debiandebian/linux

Patches

Patch: github.com ↗Patch: lore.kernel.org ↗Patch: github.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-6hcp-52xr-v4mv: A NULL pointer dereference issue was discovered in the Linux kernel in io_files_update_with_index_alloc↗2022-11-29
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OSV
CVE-2022-4127: A NULL pointer dereference issue was discovered in the Linux kernel in io_files_update_with_index_alloc↗2022-11-28
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📋Vendor Advisories

3
Microsoft
A NULL pointer dereference issue was discovered in the Linux kernel in io_files_update_with_index_alloc. A local user could use this flaw to potentially crash the system causing a denial of service.↗2022-11-08
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Red Hat
kernel: io_uring: NULL pointer dereference in io_files_update_with_index_alloc↗2022-07-09
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Debian
CVE-2022-4127: linux - A NULL pointer dereference issue was discovered in the Linux kernel in io_files_...↗2022
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