What’s Vulnerable › Vulnerabilities

CVE-2023-46862

• Severity: medium (CVSS 4.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-10-29 · updated 2026-10-15
• Weakness: CWE-476

Description

An issue was discovered in the Linux kernel through 6.5.9. During a race with SQ thread exit, an io_uring/fdinfo.c io_uring_show_fdinfo NULL pointer dereference can occur.

Affected products

• Linux kernel: through 6.5.9

References

• https://bugzilla.kernel.org/show_bug.cgi?id=218032#c4
• https://github.com/torvalds/linux/commit/7644b1a1c9a7ae8ab99175989bfc8676055edb46
• https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
• https://bugzilla.kernel.org/show_bug.cgi?id=218032#c4
• https://github.com/torvalds/linux/commit/7644b1a1c9a7ae8ab99175989bfc8676055edb46
• https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
• https://cert-portal.siemens.com/productcert/html/ssa-398330.html

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