==================================================================
BUG: KASAN: null-ptr-deref in instrument_atomic_write include/linux/instrumented.h:86 [inline]
BUG: KASAN: null-ptr-deref in clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
BUG: KASAN: null-ptr-deref in kcm_tx_work+0xff/0x160 net/kcm/kcmsock.c:742
Write of size 8 at addr 0000000000000008 by task kworker/u4:0/27930

CPU: 1 PID: 27930 Comm: kworker/u4:0 Not tainted 6.0.0-rc7-syzkaller-01542-g0f5ef005310d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Workqueue: kkcmd kcm_tx_work
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 kasan_report+0xb1/0x1e0 mm/kasan/report.c:495
 check_region_inline mm/kasan/generic.c:183 [inline]
 kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189
 instrument_atomic_write include/linux/instrumented.h:86 [inline]
 clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
 kcm_tx_work+0xff/0x160 net/kcm/kcmsock.c:742
 process_one_work+0x991/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
==================================================================
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 27930 Comm: kworker/u4:0 Not tainted 6.0.0-rc7-syzkaller-01542-g0f5ef005310d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Workqueue: kkcmd kcm_tx_work
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 panic+0x2c8/0x627 kernel/panic.c:274
 end_report.part.0+0x3f/0x7c mm/kasan/report.c:168
 end_report include/linux/cpumask.h:110 [inline]
 kasan_report.cold+0xa/0xf mm/kasan/report.c:497
 check_region_inline mm/kasan/generic.c:183 [inline]
 kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189
 instrument_atomic_write include/linux/instrumented.h:86 [inline]
 clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]
 kcm_tx_work+0xff/0x160 net/kcm/kcmsock.c:742
 process_one_work+0x991/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e4/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..