{"id":"CVE-2026-98041","published":"2026-09-25T11:17:32.880","lastModified":"2026-09-25T15:18:04.747","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Don't predict JMP32 pointer vs zero comparisons\n\nConsider the following program:\n\n        r1 = map_value;      /* low 32 bits are zero at runtime */\n        r6 = 0xdead000000000000;\n        if w1 != 0 goto l1;\n    l0: r1 += r6;\n        r2 = *(u64 *)(r1 + 0);\n        exit;\n    l1: r6 = 0;\n        goto l0;\n\nAt the moment is_branch_taken() reports the jump as always taken,\nbecause it does not distinguish between BPF_JMP and BPF_JMP32\ncomparisons when processing 'if w1 != 0 ...'.","cvssScore":7,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/a4d7f94c1ca914469ced665ec2f98be669aef462","tags":[]},{"url":"https://git.kernel.org/stable/c/d16f0eafcaa62e677a2b5b0dabc1f8d31dfe3d4d","tags":[]},{"url":"https://git.kernel.org/stable/c/e2ae33247e8b2dbe9d116d3e61cadf6d548339c6","tags":[]},{"url":"https://git.kernel.org/stable/c/e51179a4e09846f8fd0f26a05068520de2b301bf","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}