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vulnerability

Debian: CVE-2022-50167: linux -- security update

Severity
5
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:C)
Published
Jun 20, 2025
Added
Jun 20, 2025
Modified
Mar 30, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

bpf: fix potential 32-bit overflow when accessing ARRAY map element

If BPF array map is bigger than 4GB, element pointer calculation can
overflow because both index and elem_size are u32. Fix this everywhere
by forcing 64-bit multiplication. Extract this formula into separate
small helper and use it consistently in various places.

Speculative-preventing formula utilizing index_mask trick is left as is,
but explicit u64 casts are added in both places.

Solution

debian-upgrade-linux
Title
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