DUID 00:04:d5:34:fd:2d:90:3b:7d:1f:5f:ef:10:3f:c1:8d:8b:e5 forked to background, child pid 3209 [ 39.471488][ T3210] 8021q: adding VLAN 0 to HW filter on device bond0 [ 39.481095][ T3210] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.0' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 67.140038][ T3638] loop0: detected capacity change from 0 to 64 [ 67.165322][ T3640] syz-executor319[3640]: segfault at 0 ip 0000000000000000 sp 0000000020000008 error 14 [ 67.165338][ T3639] syz-executor319[3639]: segfault at 0 ip 0000000000000000 sp 0000000020000008 error 14 likely on CPU 1 (core 0, socket 0) [ 67.175126][ T3640] likely on CPU 0 (core 0, socket 0) [ 67.175558][ T3641] syz-executor319[3641]: segfault at 0 ip 0000000000000000 sp 0000000020000008 error 14 [ 67.188340][ T3644] syz-executor319[3644]: segfault at 0 ip 0000000000000000 sp 0000000020000008 error 14 [ 67.193550][ T3642] syz-executor319[3642]: segfault at 0 ip 0000000000000000 sp 0000000020000008 error 14 [ 67.213100][ T3645] syz-executor319[3645]: segfault at 0 ip 0000000000000000 sp 0000000020000008 error 14 [ 67.213528][ T3646] syz-executor319[3646]: segfault at 0 ip 0000000000000000 sp 0000000020000008 error 14 [ 67.224373][ T3647] syz-executor319[3647]: segfault at 0 ip 0000000000000000 sp 0000000020000008 error 14 [ 67.232762][ T3643] syz-executor319[3643]: segfault at 0 ip 0000000000000000 sp 0000000020000008 error 14 [ 67.252230][ T3640] [ 67.252326][ T3648] syz-executor319[3648]: segfault at 0 ip 0000000000000000 sp 0000000020000008 error 14 [ 67.265226][ T3645] likely on CPU 0 (core 0, socket 0) [ 67.292443][ T3641] likely on CPU 0 (core 0, socket 0) [ 67.293537][ T3648] likely on CPU 1 (core 0, socket 0) [ 67.298393][ T3642] likely on CPU 0 (core 0, socket 0) [ 67.305301][ T3644] likely on CPU 1 (core 0, socket 0) [ 67.317313][ T3640] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 67.317518][ T3648] [ 67.325652][ T3647] likely on CPU 0 (core 0, socket 0) [ 67.331192][ T3646] likely on CPU 1 (core 0, socket 0) [ 67.333091][ T3647] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 67.347474][ T3641] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 67.348305][ T3644] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 67.363530][ T3639] [ 67.366185][ T3643] likely on CPU 1 (core 0, socket 0) [ 67.371591][ T3643] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 67.378339][ T3652] general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] PREEMPT SMP KASAN [ 67.390686][ T3652] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 67.399100][ T3652] CPU: 0 PID: 3652 Comm: syz-executor319 Not tainted 6.1.22-syzkaller #0 [ 67.407526][ T3652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 67.417586][ T3652] RIP: 0010:bfs_get_block+0x7f4/0xac0 [ 67.422983][ T3652] Code: 08 4c 89 f7 e8 dd 61 86 ff 41 8b 16 48 89 ef 48 89 de b9 08 00 00 00 e8 fa 3c a5 ff 49 89 c6 48 8d 58 28 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 ad 61 86 ff 48 8b 2b 49 8d 7d 28 [ 67.442590][ T3652] RSP: 0018:ffffc90003d5eaf8 EFLAGS: 00010206 [ 67.448663][ T3652] RAX: 0000000000000005 RBX: 0000000000000028 RCX: ffff88807ade57c0 [ 67.456665][ T3652] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 67.464637][ T3652] RBP: ffff888012844d00 R08: ffffffff81ff0664 R09: fffff94000388077 [ 67.472628][ T3652] R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000002a [ 67.480603][ T3652] R13: ffff88807153e488 R14: 0000000000000000 R15: dffffc0000000000 [ 67.488584][ T3652] FS: 0000555556d31300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 67.497516][ T3652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.504122][ T3652] CR2: 0000000000000000 CR3: 0000000077bfc000 CR4: 00000000003506f0 [ 67.512098][ T3652] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.520077][ T3652] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.528053][ T3652] Call Trace: [ 67.531336][ T3652] [ 67.534281][ T3652] __block_write_begin_int+0x544/0x1a30 [ 67.539851][ T3652] ? bfs_bmap+0x30/0x30 [ 67.544019][ T3652] ? page_zero_new_buffers+0x650/0x650 [ 67.549483][ T3652] ? PageHeadHuge+0x8e/0x1c0 [ 67.554096][ T3652] ? bfs_bmap+0x30/0x30 [ 67.558266][ T3652] block_write_begin+0x98/0x1f0 [ 67.563128][ T3652] ? bfs_write_begin+0x1a/0xd0 [ 67.567902][ T3652] bfs_write_begin+0x31/0xd0 [ 67.572508][ T3652] generic_perform_write+0x2fc/0x5e0 [ 67.577809][ T3652] ? generic_file_direct_write+0x460/0x460 [ 67.583626][ T3652] ? __file_remove_privs+0x640/0x640 [ 67.588927][ T3652] ? generic_write_checks+0x15c/0x1c0 [ 67.594304][ T3652] ? clear_nonspinnable+0x60/0x60 [ 67.599345][ T3652] __generic_file_write_iter+0x176/0x400 [ 67.605003][ T3652] generic_file_write_iter+0xab/0x310 [ 67.610388][ T3652] __kernel_write_iter+0x2ff/0x710 [ 67.615516][ T3652] ? vfs_read+0xbe0/0xbe0 [ 67.619879][ T3652] ? iov_iter_kvec+0x4a/0x1b0 [ 67.624562][ T3652] __kernel_write+0x11c/0x170 [ 67.629255][ T3652] ? __kernel_write_iter+0x710/0x710 [ 67.634558][ T3652] ? __lock_acquire+0x1f80/0x1f80 [ 67.639595][ T3652] __dump_emit+0x232/0x350 [ 67.644020][ T3652] ? __dump_skip+0x250/0x250 [ 67.648619][ T3652] ? dump_emit+0x6e/0xc0 [ 67.652870][ T3652] writenote+0x21d/0x3b0 [ 67.657127][ T3652] ? rcu_lock_release+0x20/0x20 [ 67.661993][ T3652] ? dump_emit+0x95/0xc0 [ 67.666244][ T3652] elf_core_dump+0x30df/0x45b0 [ 67.671043][ T3652] ? load_elf_binary+0x2750/0x2750 [ 67.676172][ T3652] ? mark_lock+0x9a/0x340 [ 67.680505][ T3652] ? __lock_acquire+0x125b/0x1f80 [ 67.685552][ T3652] ? rcu_read_lock_any_held+0xb3/0x160 [ 67.691019][ T3652] ? 0xffffffffff600000 [ 67.695176][ T3652] ? getname_kernel+0x55/0x2d0 [ 67.699947][ T3652] do_coredump+0x18b7/0x2700 [ 67.704553][ T3652] ? nfs_ssc_unregister+0x30/0x30 [ 67.709596][ T3652] ? do_raw_spin_unlock+0x137/0x8a0 [ 67.714804][ T3652] ? _raw_spin_unlock_irq+0x1f/0x40 [ 67.720026][ T3652] ? lockdep_hardirqs_on+0x94/0x130 [ 67.725238][ T3652] get_signal+0x1454/0x17d0 [ 67.729763][ T3652] ? ptrace_notify+0x370/0x370 [ 67.734543][ T3652] ? __send_signal_locked+0xb06/0xd80 [ 67.739949][ T3652] ? send_signal_locked+0x7cb/0x8c0 [ 67.745165][ T3652] arch_do_signal_or_restart+0xb0/0x1a10 [ 67.750815][ T3652] ? force_sig_fault+0x127/0x1d0 [ 67.755796][ T3652] ? force_sig_fault_to_task+0x1c0/0x1c0 [ 67.761441][ T3652] ? page_fault_oops+0xaa0/0xaa0 [ 67.766387][ T3652] ? get_sigframe_size+0x10/0x10 [ 67.771359][ T3652] ? __bad_area_nosemaphore+0x447/0x730 [ 67.776937][ T3652] ? up_read+0x20/0x20 [ 67.781030][ T3652] ? exit_to_user_mode_loop+0x39/0x100 [ 67.786502][ T3652] exit_to_user_mode_loop+0x6a/0x100 [ 67.791814][ T3652] exit_to_user_mode_prepare+0xb1/0x140 [ 67.797364][ T3652] irqentry_exit_to_user_mode+0x5/0x30 [ 67.802850][ T3652] exc_page_fault+0x4e0/0x790 [ 67.807548][ T3652] asm_exc_page_fault+0x22/0x30 [ 67.812410][ T3652] RIP: 0033:0x0 [ 67.815878][ T3652] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 67.823241][ T3652] RSP: 002b:0000000020000008 EFLAGS: 00010217 [ 67.829314][ T3652] RAX: 0000000000000000 RBX: 0000000000000015 RCX: 00007facd9d13f69 [ 67.837287][ T3652] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000000 [ 67.845262][ T3652] RBP: 00007fffd23e0118 R08: 0000000000000000 R09: 0000000000000001 [ 67.853234][ T3652] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffd23e0140 [ 67.861205][ T3652] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 67.869186][ T3652] [ 67.872221][ T3652] Modules linked in: [ 67.876210][ T3639] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 67.876960][ T3645] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 67.893942][ T3646] [ 67.896793][ T3642] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 67.905125][ T3646] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 67.905477][ T3648] Code: Unable to access opcode bytes at 0xffffffffffffffd6. [ 67.995362][ T3652] ---[ end trace 0000000000000000 ]--- [ 68.000866][ T3652] RIP: 0010:bfs_get_block+0x7f4/0xac0 [ 68.006481][ T3652] Code: 08 4c 89 f7 e8 dd 61 86 ff 41 8b 16 48 89 ef 48 89 de b9 08 00 00 00 e8 fa 3c a5 ff 49 89 c6 48 8d 58 28 48 89 d8 48 c1 e8 03 <42> 80 3c 38 00 74 08 48 89 df e8 ad 61 86 ff 48 8b 2b 49 8d 7d 28 [ 68.026219][ T3652] RSP: 0018:ffffc90003d5eaf8 EFLAGS: 00010206 [ 68.032415][ T3652] RAX: 0000000000000005 RBX: 0000000000000028 RCX: ffff88807ade57c0 [ 68.040684][ T3652] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 68.048722][ T3652] RBP: ffff888012844d00 R08: ffffffff81ff0664 R09: fffff94000388077 [ 68.056763][ T3652] R10: 0000000000000000 R11: dffffc0000000001 R12: 000000000000002a [ 68.064758][ T3652] R13: ffff88807153e488 R14: 0000000000000000 R15: dffffc0000000000 [ 68.072782][ T3652] FS: 0000555556d31300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 68.081784][ T3652] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.088405][ T3652] CR2: 00007fffd23dffe8 CR3: 0000000077bfc000 CR4: 00000000003506e0 [ 68.096423][ T3652] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.104402][ T3652] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.112404][ T3652] Kernel panic - not syncing: Fatal exception [ 68.118734][ T3652] Kernel Offset: disabled [ 68.123106][ T3652] Rebooting in 86400 seconds..