CVE-2024-40944

Published: Jul 12, 2024

Modified: May 11, 2026

PUBLISHED

Description

In the Linux kernel, the following vulnerability has been resolved: x86/kexec: Fix bug with call depth tracking The call to cc_platform_has() triggers a fault and system crash if call depth tracking is active because the GS segment has been reset by load_segments() and GS_BASE is now 0 but call depth tracking uses per-CPU variables to operate. Call cc_platform_has() earlier in the function when GS is still valid. [ bp: Massage. ]

Vendor	Product	Versions
Linux	Linux	affected `5d8213864ade86b48fc492584ea86d65a62f892e - < d91ddd05082691e69b30744825d18ae799293258` affected `5d8213864ade86b48fc492584ea86d65a62f892e - < 2cfb464669b645a9b98478b74f2bcea9860dcff1` affected `5d8213864ade86b48fc492584ea86d65a62f892e - < 93c1800b3799f17375989b0daf76497dd3e80922`
Linux	Linux	affected `6.2` unaffected `0 - < 6.2` unaffected `6.6.35 - <= 6.6.` unaffected `6.9.6 - <= 6.9.` unaffected `6.10 - <= *`

References

https://git.kernel.org/stable/c/d91ddd05082691e69b30744825d18ae799293258

https://git.kernel.org/stable/c/2cfb464669b645a9b98478b74f2bcea9860dcff1

https://git.kernel.org/stable/c/93c1800b3799f17375989b0daf76497dd3e80922

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CVE-2024-40944

Description

Affected Products

References