CVE-2022-40476 — NULL Pointer Dereference in Kernel

CWE-476 — NULL Pointer Dereference6 documents6 sources
Severity
5.5MEDIUMNVD
EPSS
0.2%
top 63.18%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Linux KernelDebian LinuxMsrc Cbl2 Kernel 5.15.67.1-4 ON CBL Mariner 2.0+1 more
Timeline
PublishedSep 14
Latest updateSep 15

Description

A null pointer dereference issue was discovered in fs/io_uring.c in the Linux kernel before 5.15.62. A local user could use this flaw to crash the system or potentially cause 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 Packages4 packages

▶NVDlinux/linux_kernel< 5.15.62
▶debiandebian/linux

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-3mpj-g9cw-f3hj: A null pointer dereference issue was discovered in fs/io_uring↗2022-09-15
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OSV
CVE-2022-40476: A null pointer dereference issue was discovered in fs/io_uring↗2022-09-14
▶

📋Vendor Advisories

3
Microsoft
A null pointer dereference issue was discovered in fs/io_uring.c in the Linux kernel before 5.15.62. A local user could use this flaw to crash the system or potentially cause a denial of service.↗2022-09-13
▶
Red Hat
kernel: NULL pointer dereference issue in io_req_track_inflight in fs/io_uring.c↗2022-08-17
▶
Debian
CVE-2022-40476: linux - A null pointer dereference issue was discovered in fs/io_uring.c in the Linux ke...↗2022
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CVE-2022-40476 — NULL Pointer Dereference in Kernel | cvebase