CVE-2026-80564

gve: fix NULL dereference due to missing ptp adjfine

N/A
Published: August 26, 2026 at 02:37 PM UTC
Updated: August 26, 2026 at 03:17 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.17 ≤ v < 6.18.466.17 ≤ v < 7.1.106.17 ≤ v < 7.26.17acd16380523b400400523fe54c7499320e558e80
Vendor states this is fixed in 3992ced109c70b771efad9e51ae68e5c7a04dea3 (fixed)
Vendor states this is fixed in e9482feeed66d4bc805458631013e9b61b1a9eaf (fixed)
Vendor states this is fixed in fa9b991bf678dd412dc0ed080672d34d7558d7af (fixed)
Vendor states this is fixed in 6.17 (unaffected)
Vendor states this is fixed in 6.18.46 (unaffected)
Vendor states this is fixed in 7.1.10 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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