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

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
acd16380523b400400523fe54c7499320e558e80 affected < e9482feeed66d4bc805458631013e9b61b1a9eaf
acd16380523b400400523fe54c7499320e558e80 affected < fa9b991bf678dd412dc0ed080672d34d7558d7af
acd16380523b400400523fe54c7499320e558e80 affected < 3992ced109c70b771efad9e51ae68e5c7a04dea3
Linux Linux affected
Version Status Constraints
6.17 affected —
0 unaffected < 6.17
6.18.46 unaffected ≤ 6.18.*
7.1.10 unaffected ≤ 7.1.*
7.2 unaffected ≤ *

No data.

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/3992ced109c70b771efad9e51ae68e5c7a04dea3 cve-icon cve-icon
https://git.kernel.org/stable/c/e9482feeed66d4bc805458631013e9b61b1a9eaf cve-icon cve-icon
https://git.kernel.org/stable/c/fa9b991bf678dd412dc0ed080672d34d7558d7af cve-icon cve-icon
History

Wed, 26 Aug 2026 16:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-476

Wed, 26 Aug 2026 14:45:00 +0000

Type Values Removed Values Added
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
Title gve: fix NULL dereference due to missing ptp adjfine
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-26T14:37:28.351Z

Reserved: 2026-08-26T14:34:25.767Z

Link: CVE-2026-80564

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-26T15:17:11.433

Modified: 2026-08-26T15:17:11.433

Link: CVE-2026-80564

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-26T17:45:03Z

Weaknesses