CVE-2026-80564

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