CVE-2026-74720
In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve pointer state for commuted arithmetic When scalar += pointer is handled in adjust_ptr_min_max_vals(), the destination register inherits the pointer state from the source pointer. Copying only selected fields is fragile because pointer provenance is tracked by several bpf_reg_state fields. Use the caller's temporary offset register to preserve the scalar operand while replacing the destination with the full pointer state. This preserves the frame number for PTR_TO_STACK registers and keeps parent identity fields consistent.
Affected versions
Linux kernel versions
4.16
and later are affected. Fixed in
5.10.265,
5.15.216,
6.1.183,
6.6.152,
6.12.104,
6.18.45,
7.1.9,
7.2
and their respective stable series.
References
8 totalFrequently asked questions
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What is CVE-2026-74720?
CVE-2026-74720 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.16 onward and has been patched in 5.10.265, 5.15.216, 6.1.183 and others. CVE-2026-74720 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-74720?
Yes. CVE-2026-74720 has been patched. Fixed versions include 5.10.265, 5.15.216, 6.1.183 and others. If you are running Linux kernel 4.16 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-74720 actively exploited?
No. CVE-2026-74720 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.