CVE-2026-98041: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: bpf: Don't predict JMP32 pointer vs zero comparisons Consider the following program: r1 = map_value; /* low 32 bits are zero at runtime */ r6 = 0xdead000000000000; if w1 != 0 goto l1; l0: r1 += r6; r2 = *(u64 *)(r1 + 0); exit; l1: r6 = 0; goto l0; At the moment is_branch_taken() reports the jump as always taken, because it does not distinguish between BPF_JMP and BPF_JMP32 comparisons when processing 'if w1 != 0 ...'.

Засегнати продукти

• Linux Linux: cac616db39c207dc63465a4e05c6ce0e60b2cce4 преди 6e1544986536734166176c3add504add23bcbd15; cac616db39c207dc63465a4e05c6ce0e60b2cce4 преди d16f0eafcaa62e677a2b5b0dabc1f8d31dfe3d4d; cac616db39c207dc63465a4e05c6ce0e60b2cce4 преди e2ae33247e8b2dbe9d116d3e61cadf6d548339c6; cac616db39c207dc63465a4e05c6ce0e60b2cce4 преди a4d7f94c1ca914469ced665ec2f98be669aef462; cac616db39c207dc63465a4e05c6ce0e60b2cce4 преди e51179a4e09846f8fd0f26a05068520de2b301bf
• Linux Linux: 5.8; преди 5.8; 6.6.160 до 6.6.*; 6.12.111 до 6.12.*; 6.18.53 до 6.18.*; 7.2.7 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-98041
• https://nvd.nist.gov/vuln/detail/CVE-2026-98041
• https://git.kernel.org/stable/c/6e1544986536734166176c3add504add23bcbd15
• https://git.kernel.org/stable/c/d16f0eafcaa62e677a2b5b0dabc1f8d31dfe3d4d
• https://git.kernel.org/stable/c/e2ae33247e8b2dbe9d116d3e61cadf6d548339c6
• https://git.kernel.org/stable/c/a4d7f94c1ca914469ced665ec2f98be669aef462
• https://git.kernel.org/stable/c/e51179a4e09846f8fd0f26a05068520de2b301bf