Warning: Permanently added '10.128.1.71' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program syzkaller login: [ 43.135886][ T4296] loop0: detected capacity change from 0 to 40427 [ 43.185244][ T4296] F2FS-fs (loop0): Ignore s_resuid=60929, s_resgid=0 w/o reserve_root [ 43.198225][ T4296] F2FS-fs (loop0): Found nat_bits in checkpoint [ 43.234928][ T4296] F2FS-fs (loop0): Cannot turn on quotas: -2 on 0 [ 43.240335][ T4296] F2FS-fs (loop0): Cannot turn on quotas: -2 on 1 [ 43.241940][ T4296] F2FS-fs (loop0): Cannot turn on quotas: -2 on 2 [ 43.249512][ T4303] loop4: detected capacity change from 0 to 40427 [ 43.264330][ T4296] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e5 [ 43.269328][ T4303] F2FS-fs (loop4): Ignore s_resuid=60929, s_resgid=0 w/o reserve_root [ 43.351932][ T4306] loop1: detected capacity change from 0 to 40427 [ 43.392706][ T4306] F2FS-fs (loop1): Ignore s_resuid=60929, s_resgid=0 w/o reserve_root [ 43.413757][ T4306] F2FS-fs (loop1): Found nat_bits in checkpoint [ 43.437865][ T4306] F2FS-fs (loop1): Cannot turn on quotas: -2 on 0 [ 43.439298][ T4306] F2FS-fs (loop1): Cannot turn on quotas: -2 on 1 [ 43.440551][ T4306] F2FS-fs (loop1): Cannot turn on quotas: -2 on 2 [ 43.455861][ T4306] F2FS-fs (loop1): Mounted with checkpoint version = 48b305e5 [ 43.458159][ T4303] F2FS-fs (loop4): Found nat_bits in checkpoint [ 43.475908][ T4303] F2FS-fs (loop4): Cannot turn on quotas: -2 on 0 [ 43.477386][ T4303] F2FS-fs (loop4): Cannot turn on quotas: -2 on 1 [ 43.478675][ T4303] F2FS-fs (loop4): Cannot turn on quotas: -2 on 2 [ 43.491913][ T4303] F2FS-fs (loop4): Mounted with checkpoint version = 48b305e5 executing program [ 43.505108][ T4306] ================================================================== [ 43.506935][ T4306] BUG: KASAN: null-ptr-deref in kthread_stop+0x108/0x8c0 [ 43.507335][ T4297] loop2: detected capacity change from 0 to 40427 [ 43.508377][ T4306] Write of size 4 at addr 0000000000000028 by task syz-executor395/4306 [ 43.511357][ T4306] [ 43.511866][ T4306] CPU: 0 PID: 4306 Comm: syz-executor395 Tainted: G W 6.1.122-syzkaller #0 [ 43.513891][ T4306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 43.515884][ T4306] Call trace: [ 43.516603][ T4306] dump_backtrace+0x1c8/0x1f4 [ 43.517603][ T4306] show_stack+0x2c/0x3c [ 43.518542][ T4306] dump_stack_lvl+0x108/0x170 [ 43.519578][ T4306] print_report+0xe4/0x4c0 [ 43.520491][ T4306] kasan_report+0xd4/0x130 [ 43.521517][ T4306] kasan_check_range+0x264/0x2a4 [ 43.522514][ T4306] __kasan_check_write+0x2c/0x3c [ 43.523562][ T4306] kthread_stop+0x108/0x8c0 [ 43.524575][ T4306] f2fs_stop_gc_thread+0x70/0xc0 [ 43.525527][ T4306] __f2fs_ioctl+0x7cc8/0xb738 [ 43.526546][ T4306] f2fs_ioctl+0x130/0x1a0 [ 43.527380][ T4306] __arm64_sys_ioctl+0x14c/0x1c8 [ 43.528406][ T4306] invoke_syscall+0x98/0x2bc [ 43.529412][ T4306] el0_svc_common+0x138/0x258 [ 43.530350][ T4306] do_el0_svc+0x58/0x13c [ 43.531366][ T4306] el0_svc+0x58/0x168 [ 43.532163][ T4306] el0t_64_sync_handler+0x84/0xf0 [ 43.533311][ T4306] el0t_64_sync+0x18c/0x190 [ 43.534238][ T4306] ================================================================== [ 43.644602][ T4306] Disabling lock debugging due to kernel taint [ 43.646050][ T4306] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000028 [ 43.648199][ T4306] Mem abort info: [ 43.648987][ T4306] ESR = 0x0000000096000006 [ 43.649873][ T4306] EC = 0x25: DABT (current EL), IL = 32 bits [ 43.651172][ T4306] SET = 0, FnV = 0 [ 43.652009][ T4306] EA = 0, S1PTW = 0 [ 43.652876][ T4306] FSC = 0x06: level 2 translation fault [ 43.654096][ T4306] Data abort info: [ 43.654923][ T4306] ISV = 0, ISS = 0x00000006 [ 43.655833][ T4306] CM = 0, WnR = 0 [ 43.656561][ T4306] user pgtable: 4k pages, 48-bit VAs, pgdp=00000001111d4000 [ 43.658171][ T4306] [0000000000000028] pgd=0800000102fe1003, p4d=0800000102fe1003, pud=080000010c9be003, pmd=0000000000000000 [ 43.660527][ T4306] Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP [ 43.662022][ T4306] Modules linked in: [ 43.662858][ T4306] CPU: 1 PID: 4306 Comm: syz-executor395 Tainted: G B W 6.1.122-syzkaller #0 [ 43.665006][ T4306] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 43.667165][ T4306] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 43.668769][ T4306] pc : kthread_stop+0x114/0x8c0 [ 43.669787][ T4306] lr : kthread_stop+0x110/0x8c0 [ 43.670730][ T4306] sp : ffff800021237700 [ 43.671636][ T4306] x29: ffff800021237700 x28: ffff700004246f2c x27: ffff800021237960 [ 43.673168][ T4306] x26: 1fffe0001bd06a68 x25: dfff800000000000 x24: 0000000000400140 [ 43.674865][ T4306] x23: dfff800000000000 x22: dfff800000000000 x21: 0000000000000028 [ 43.676502][ T4306] x20: 0000000000000001 x19: 0000000000000000 x18: 1fffe000367a0176 [ 43.678107][ T4306] x17: 0000000000000000 x16: ffff80001227e7c0 x15: 0000000000000000 [ 43.679954][ T4306] x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000000001 [ 43.681767][ T4306] x11: 0000000000ff0100 x10: 0000000000000000 x9 : ffff80000823620c [ 43.683658][ T4306] x8 : 0000000000000001 x7 : 0000000000000001 x6 : 0000000000000001 [ 43.685382][ T4306] x5 : ffff800021236ef8 x4 : ffff800015b731e0 x3 : ffff8000081a9738 [ 43.686996][ T4306] x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 [ 43.688749][ T4306] Call trace: [ 43.689443][ T4306] kthread_stop+0x114/0x8c0 [ 43.690400][ T4306] f2fs_stop_gc_thread+0x70/0xc0 [ 43.691544][ T4306] __f2fs_ioctl+0x7cc8/0xb738 [ 43.692621][ T4306] f2fs_ioctl+0x130/0x1a0 [ 43.693539][ T4306] __arm64_sys_ioctl+0x14c/0x1c8 [ 43.694562][ T4306] invoke_syscall+0x98/0x2bc [ 43.695604][ T4306] el0_svc_common+0x138/0x258 [ 43.696846][ T4306] do_el0_svc+0x58/0x13c [ 43.697797][ T4306] el0_svc+0x58/0x168 [ 43.698532][ T4306] el0t_64_sync_handler+0x84/0xf0 [ 43.699617][ T4306] el0t_64_sync+0x18c/0x190 [ 43.700582][ T4306] Code: 941d0188 d503201f 940af3dc 52800028 (b82802b4) [ 43.702252][ T4306] ---[ end trace 0000000000000000 ]--- [ 44.055040][ T4306] Kernel panic - not syncing: Oops: Fatal exception [ 44.056640][ T4306] SMP: stopping secondary CPUs [ 44.057664][ T4306] Kernel Offset: disabled [ 44.058602][ T4306] CPU features: 0x080000,02070084,26017203 [ 44.059909][ T4306] Memory Limit: none [ 44.376050][ T4306] Rebooting in 86400 seconds..