CVE-2026-98041
HighIn 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 ...'.
CVSS 3.1 score
7.0
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected versions
Linux kernel versions
5.8
and later are affected. Fixed in
6.12.111,
6.18.53,
7.2.7,
7.3-rc2
and their respective stable series.
References
4 totalFrequently asked questions
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What is CVE-2026-98041?
CVE-2026-98041 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10 . It affects Linux kernel versions from 5.8 onward and has been patched in 6.12.111, 6.18.53, 7.2.7 and others. CVE-2026-98041 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2026-98041?
CVE-2026-98041 has a CVSS score of 7.0 out of 10, rated High severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H. -
Is there a patch available for CVE-2026-98041?
Yes. CVE-2026-98041 has been patched. Fixed versions include 6.12.111, 6.18.53, 7.2.7 and others. If you are running Linux kernel 5.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-98041 actively exploited?
No. CVE-2026-98041 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.