NULL Pointer Dereference Affecting torvalds/linux package, versions [5.8,6.18.59)[6.19,7.2.13)
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- published29 Oct 2026
- disclosed28 Oct 2026
- creditUnknown
Introduced: 28 Oct 2026
NewCVE-2026-99179 (opens in a new tab)How to fix?
Upgrade torvalds/linux to version 6.18.59, 7.2.13 or higher.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference in the post_one_notification process. An attacker can cause a kernel panic and system crash by racing ioctl(IOC_WATCH_QUEUE_SET_SIZE) on a notification pipe against keyctl(KEYCTL_SETPERM) on a key from another CPU, leading to a NULL pointer dereference.
Note: The Linux kernel project assigns a CVE to every bug fix it ships, whether or not the bug has been shown to be exploitable. This advisory was generated from that process and has not been individually assessed for exploitability. See the kernel's CVE process documentation: https://github.com/torvalds/linux/blob/master/Documentation/process/cve.rst