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CVE-2022-39188

Published: Sep 2, 2022

Modified: Aug 3, 2024

PUBLISHED

Description

An issue was discovered in include/asm-generic/tlb.h in the Linux kernel before 5.19. Because of a race condition (unmap_mapping_range versus munmap), a device driver can free a page while it still has stale TLB entries. This only occurs in situations with VM_PFNMAP VMAs.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://bugs.chromium.org/p/project-zero/issues/detail?id=2329

https://lore.kernel.org/stable/CAG48ez3SEqOPcPCYGHVZv4iqEApujD5VtM3Re-tCKLDEFdEdbg%40mail.gmail.com/

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19

https://github.com/torvalds/linux/commit/b67fbebd4cf980aecbcc750e1462128bffe8ae15

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b67fbebd4cf980aecbcc750e1462128bffe8ae15

[debian-lts-announce] 20221002 [SECURITY] [DLA 3131-1] linux security update

mailing-list

vendor-advisory

[debian-lts-announce] 20221101 [SECURITY] [DLA 3173-1] linux-5.10 security update

mailing-list

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