Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.48' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 49.468265][ T8368] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program [ 50.655655][ T4804] ------------[ cut here ]------------ [ 50.662239][ T4804] Trying to write to read-only block-device sda1 (partno 1) [ 50.672257][ T4804] WARNING: CPU: 0 PID: 4804 at block/blk-core.c:706 submit_bio_checks+0x110b/0x1600 [ 50.682007][ T4804] Modules linked in: [ 50.686198][ T4804] CPU: 1 PID: 4804 Comm: jbd2/sda1-8 Not tainted 5.12.0-rc1-syzkaller #0 [ 50.694887][ T4804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.707002][ T4804] RIP: 0010:submit_bio_checks+0x110b/0x1600 [ 50.713295][ T4804] Code: 03 48 b9 00 00 00 00 00 fc ff df 8a 04 08 84 c0 0f 85 e8 04 00 00 0f b6 13 48 c7 c7 a0 e8 0b 8a 4c 89 f6 31 c0 e8 15 ab 90 fd <0f> 0b 4c 8b 6c 24 10 49 be 00 00 00 00 00 fc ff df e9 bd f2 ff ff [ 50.734030][ T4804] RSP: 0018:ffffc9000b11f900 EFLAGS: 00010246 [ 50.740993][ T4804] RAX: 9ab737cbee47ca00 RBX: ffff888016adf8e0 RCX: ffff888022943780 [ 50.749751][ T4804] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 50.758592][ T4804] RBP: ffffc9000b11f9c0 R08: ffffffff81602402 R09: ffffed1017385fe8 [ 50.768253][ T4804] R10: ffffed1017385fe8 R11: 0000000000000000 R12: ffff88801cca73c8 [ 50.777797][ T4804] R13: ffff88801cca73c0 R14: ffffc9000b11f960 R15: 1ffff11003994e79 [ 50.786627][ T4804] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 50.797327][ T4804] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.804011][ T4804] CR2: 00007f7965117000 CR3: 00000000264e8000 CR4: 00000000001506e0 [ 50.813520][ T4804] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.822751][ T4804] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.833058][ T4804] Call Trace: [ 50.837269][ T4804] ? lock_is_held_type+0xf8/0x160 [ 50.843090][ T4804] submit_bio_noacct+0x36/0x1020 [ 50.849147][ T4804] ? bio_add_page+0x2e9/0x470 executing program [ 50.853992][ T4804] ? rcu_lock_release+0x5/0x20 [ 50.860056][ T4804] submit_bio+0x1a4/0x640 [ 50.866325][ T4804] submit_bh+0x21/0x30 [ 50.870768][ T4804] jbd2_journal_commit_transaction+0x25db/0x5ac0 [ 50.878380][ T4804] ? try_to_del_timer_sync+0x2d8/0x350 [ 50.884109][ T4804] kjournald2+0x432/0x8a0 [ 50.890155][ T4804] ? init_wait_entry+0xd0/0xd0 [ 50.896664][ T4804] ? trace_jbd2_write_superblock+0x230/0x230 [ 50.903423][ T4804] kthread+0x39a/0x3c0 [ 50.908645][ T4804] ? trace_jbd2_write_superblock+0x230/0x230 [ 50.914917][ T4804] ? kthread_blkcg+0xd0/0xd0 [ 50.921097][ T4804] ret_from_fork+0x1f/0x30 [ 50.926464][ T4804] Kernel panic - not syncing: panic_on_warn set ... [ 50.933170][ T4804] CPU: 1 PID: 4804 Comm: jbd2/sda1-8 Not tainted 5.12.0-rc1-syzkaller #0 [ 50.942088][ T4804] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.952872][ T4804] Call Trace: [ 50.956244][ T4804] dump_stack+0x125/0x19e [ 50.960873][ T4804] panic+0x291/0x800 [ 50.964884][ T4804] ? __warn+0x13e/0x270 [ 50.969048][ T4804] __warn+0x26a/0x270 [ 50.973565][ T4804] ? submit_bio_checks+0x110b/0x1600 [ 50.978882][ T4804] ? submit_bio_checks+0x110b/0x1600 [ 50.984452][ T4804] report_bug+0x1b1/0x2e0 [ 50.989775][ T4804] handle_bug+0x3d/0x70 [ 50.994493][ T4804] exc_invalid_op+0x16/0x40 [ 50.999390][ T4804] asm_exc_invalid_op+0x12/0x20 [ 51.004974][ T4804] RIP: 0010:submit_bio_checks+0x110b/0x1600 [ 51.011499][ T4804] Code: 03 48 b9 00 00 00 00 00 fc ff df 8a 04 08 84 c0 0f 85 e8 04 00 00 0f b6 13 48 c7 c7 a0 e8 0b 8a 4c 89 f6 31 c0 e8 15 ab 90 fd <0f> 0b 4c 8b 6c 24 10 49 be 00 00 00 00 00 fc ff df e9 bd f2 ff ff [ 51.032255][ T4804] RSP: 0018:ffffc9000b11f900 EFLAGS: 00010246 [ 51.038833][ T4804] RAX: 9ab737cbee47ca00 RBX: ffff888016adf8e0 RCX: ffff888022943780 [ 51.047095][ T4804] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 51.055845][ T4804] RBP: ffffc9000b11f9c0 R08: ffffffff81602402 R09: ffffed1017385fe8 [ 51.064393][ T4804] R10: ffffed1017385fe8 R11: 0000000000000000 R12: ffff88801cca73c8 [ 51.073389][ T4804] R13: ffff88801cca73c0 R14: ffffc9000b11f960 R15: 1ffff11003994e79 [ 51.082903][ T4804] ? wake_up_klogd+0xb2/0xf0 [ 51.087873][ T4804] ? lock_is_held_type+0xf8/0x160 [ 51.092903][ T4804] submit_bio_noacct+0x36/0x1020 [ 51.098077][ T4804] ? bio_add_page+0x2e9/0x470 [ 51.103204][ T4804] ? rcu_lock_release+0x5/0x20 [ 51.108137][ T4804] submit_bio+0x1a4/0x640 [ 51.112938][ T4804] submit_bh+0x21/0x30 [ 51.117117][ T4804] jbd2_journal_commit_transaction+0x25db/0x5ac0 [ 51.123687][ T4804] ? try_to_del_timer_sync+0x2d8/0x350 [ 51.129453][ T4804] kjournald2+0x432/0x8a0 [ 51.134150][ T4804] ? init_wait_entry+0xd0/0xd0 [ 51.139045][ T4804] ? trace_jbd2_write_superblock+0x230/0x230 [ 51.145465][ T4804] kthread+0x39a/0x3c0 [ 51.149826][ T4804] ? trace_jbd2_write_superblock+0x230/0x230 [ 51.156161][ T4804] ? kthread_blkcg+0xd0/0xd0 [ 51.162242][ T4804] ret_from_fork+0x1f/0x30 [ 51.168741][ T4804] Kernel Offset: disabled [ 51.173277][ T4804] Rebooting in 86400 seconds..