Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: gve: fix NULL dereference due to missing ptp adjfine Fix NULL dereference due to missing implementation of adjfine, which can be triggered from usermode as follows: sudo ./testptp -d /dev/ptp0 -f 0 [ 551.943697] BUG: kernel NULL pointer dereference, address: 0000000000000000 [...] [ 552.061946] Call Trace: [ 552.064487] <TASK> [ 552.066681] ptp_clock_adjtime+0x1c0/0x2c0 [ 552.070874] ? get_clock_desc+0x6b/0xb0 [ 552.074825] pc_clock_adjtime+0x78/0xc0 [ 552.078755] __do_sys_clock_adjtime+0x85/0x110 [ 552.083293] do_syscall_64+0xea/0x610
References
- https://git.kernel.org/stable/c/3992ced109c70b771efad9e51ae68e5c7a04dea3
- https://git.kernel.org/stable/c/e9482feeed66d4bc805458631013e9b61b1a9eaf
- https://git.kernel.org/stable/c/fa9b991bf678dd412dc0ed080672d34d7558d7af
FAQ
What is CVE-2026-80564?
CVE-2026-80564 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: gve: fix NULL dereference due to missing ptp adjfine Fix NULL dereference due to missing implementation of adjfine, which can be t...
How severe is CVE-2026-80564?
CVSS scoring is not yet available for CVE-2026-80564. Check NVD for updates.
Is there a patch for CVE-2026-80564?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.