ci-upstream-kmsan-gce-root-test-job/strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ci-upstream-kmsan-gce-root-test-job/syz-execprog -executor=ci-upstream-kmsan-gce-root-test-job/syz-executor -arch=amd64 -sandbox=none -procs=5 -repeat=0 -threaded=true -collide=false -optional=slowdown=1:sandbox_arg=0:type=gce ci-upstream-kmsan-gce-root-test-job/syzkaller28260308

<...>
Warning: Permanently added '10.128.0.133' (ED25519) to the list of known hosts.
[  301.212447][ T6068] =====================================================
[  301.219946][ T6068] BUG: KMSAN: kernel-infoleak in irqentry_exit+0x48b/0xa00
[  301.227480][ T6068]  irqentry_exit+0x48b/0xa00
[  301.232587][ T6068]  exc_page_fault+0x7e/0xb0
[  301.237348][ T6068]  asm_exc_page_fault+0x2b/0x30
[  301.242489][ T6068] 
[  301.245012][ T6068] Local variable end_time.i.i created at:
[  301.251112][ T6068]  __x64_sys_poll+0x87/0x540
[  301.255922][ T6068]  x64_sys_call+0x3130/0x3ea0
[  301.260908][ T6068] 
[  301.263338][ T6068] Bytes 0-3 of 4 are uninitialized
[  301.268589][ T6068] Memory access of size 4 starts at ffff88804eb93e88
[  301.275667][ T6068] Data copied to user address 00007f262c85a140
[  301.281960][ T6068] 
[  301.284480][ T6068] CPU: 0 UID: 0 PID: 6068 Comm: sshd-session Not tainted syzkaller #0 PREEMPT(lazy) 
[  301.294270][ T6068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  301.304918][ T6068] =====================================================
[  301.312262][ T6068] Disabling lock debugging due to kernel taint
[  301.318642][ T6068] Kernel panic - not syncing: kmsan.panic set ...
[  301.325427][ T6068] CPU: 0 UID: 0 PID: 6068 Comm: sshd-session Tainted: G    B               syzkaller #0 PREEMPT(lazy) 
[  301.336951][ T6068] Tainted: [B]=BAD_PAGE
[  301.341261][ T6068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[  301.351598][ T6068] Call Trace:
[  301.355253][ T6068]  <TASK>
[  301.358345][ T6068]  __dump_stack+0x26/0x30
[  301.362980][ T6068]  dump_stack_lvl+0x50/0x1c0
[  301.367778][ T6068]  ? dump_stack+0x12/0x25
[  301.372335][ T6068]  dump_stack+0x1e/0x25
[  301.376690][ T6068]  vpanic+0x7b4/0x1430
[  301.381150][ T6068]  panic+0x15d/0x160
[  301.385224][ T6068]  kmsan_report+0x31a/0x320
[  301.389970][ T6068]  ? kmsan_get_metadata+0xf1/0x160
[  301.395229][ T6068]  ? kmsan_internal_check_memory+0x1e8/0x240
[  301.401349][ T6068]  ? kmsan_copy_to_user+0xef/0x190
[  301.406628][ T6068]  ? irqentry_exit+0x48b/0xa00
[  301.411643][ T6068]  ? exc_page_fault+0x7e/0xb0
[  301.416486][ T6068]  ? asm_exc_page_fault+0x2b/0x30
[  301.421989][ T6068]  ? handle_mm_fault+0x2eb0/0x6ee0
[  301.427532][ T6068]  ? kmsan_get_metadata+0xf1/0x160
[  301.432941][ T6068]  ? kmsan_get_metadata+0xf1/0x160
[  301.438377][ T6068]  ? kmsan_internal_set_shadow_origin+0x7a/0x110
[  301.445218][ T6068]  kmsan_internal_check_memory+0x1e8/0x240
[  301.451279][ T6068]  kmsan_copy_to_user+0xef/0x190
[  301.456740][ T6068]  irqentry_exit+0x48b/0xa00
[  301.461625][ T6068]  exc_page_fault+0x7e/0xb0
[  301.466381][ T6068]  asm_exc_page_fault+0x2b/0x30
[  301.471571][ T6068] RIP: 0033:0x556a9a6be413
[  301.476098][ T6068] Code: 5a 08 0f 00 00 0f 85 8e 04 00 00 48 8b 3d 95 01 0f 00 e8 20 66 02 00 48 8b 1d 89 01 0f 00 e8 64 ce ff ff 48 8b 15 7d 01 0f 00 <89> 43 18 48 63 42 18 83 f8 ff 0f 84 30 04 00 00 85 c0 0f 84 cc 00
[  301.495984][ T6068] RSP: 002b:00007ffeb2db16e0 EFLAGS: 00010202
[  301.502514][ T6068] RAX: 00000000000017b6 RBX: 0000556ad1a389c0 RCX: 0000000000000000
[  301.510939][ T6068] RDX: 0000556ad1a389c0 RSI: 0000000000000000 RDI: 0000000000000000
[  301.519544][ T6068] RBP: 00000000000017b5 R08: 00007f262c1f2b60 R09: 0000000000000000
[  301.527750][ T6068] R10: 0000000000000008 R11: 0000000000000246 R12: 0000556a9a759348
[  301.536202][ T6068] R13: 0000556a9a76bb40 R14: 0000556ad1a34550 R15: 00000000000017b5
[  301.544482][ T6068]  </TASK>
[  301.548376][ T6068] Kernel Offset: disabled
[  301.552919][ T6068] Rebooting in 86400 seconds..