last executing test programs: kernel console output (not intermixed with test programs): Warning: Permanently added '10.128.0.198' (ED25519) to the list of known hosts. [ 72.523604][ T4944] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN PTI [ 72.535537][ T4944] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 72.544061][ T4944] CPU: 1 UID: 0 PID: 4944 Comm: jbd2/sda1-8 Not tainted syzkaller #0 PREEMPT(full) [ 72.553426][ T4944] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 72.563483][ T4944] RIP: 0010:__bh_submit+0x22d/0x8d0 [ 72.568694][ T4944] Code: c1 e8 03 48 89 44 24 18 42 80 3c 20 00 74 08 48 89 df e8 f6 e7 d7 ff 48 89 5c 24 28 48 8b 1b 4c 8d 7b 08 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 d4 e7 d7 ff 4d 8b 3f 4c 89 fe 48 [ 72.588294][ T4944] RSP: 0018:ffffc9000e317868 EFLAGS: 00010202 [ 72.594354][ T4944] RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff84b9d9a9 [ 72.602310][ T4944] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff88807538a2a0 [ 72.610296][ T4944] RBP: 0000000000009801 R08: ffff88807538a2ff R09: 1ffff1100ea7145f [ 72.618256][ T4944] R10: dffffc0000000000 R11: ffffed100ea71460 R12: dffffc0000000000 [ 72.626218][ T4944] R13: ffff88807538a280 R14: ffff88807656dee0 R15: 0000000000000008 [ 72.634178][ T4944] FS: 0000000000000000(0000) GS:ffff88812495b000(0000) knlGS:0000000000000000 [ 72.643092][ T4944] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.649667][ T4944] CR2: 00007f4e503eb840 CR3: 000000000ed48000 CR4: 00000000003526f0 [ 72.657623][ T4944] Call Trace: [ 72.660902][ T4944] [ 72.663812][ T4944] ? __pfx_journal_end_buffer_io_sync+0x10/0x10 [ 72.670038][ T4944] jbd2_journal_commit_transaction+0x2285/0x5c80 [ 72.676364][ T4944] ? __pfx_jbd2_journal_commit_transaction+0x10/0x10 [ 72.683027][ T4944] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 72.688407][ T4944] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 72.694207][ T4944] ? _raw_spin_unlock_irqrestore+0x4c/0x80 [ 72.699995][ T4944] ? __timer_delete_sync+0x4a7/0x520 [ 72.705269][ T4944] kjournald2+0x3bc/0x740 [ 72.709588][ T4944] ? __pfx_kjournald2+0x10/0x10 [ 72.714418][ T4944] ? __pfx_autoremove_wake_function+0x10/0x10 [ 72.720481][ T4944] ? __kthread_parkme+0x71/0x1f0 [ 72.725406][ T4944] ? __kthread_parkme+0x199/0x1f0 [ 72.730431][ T4944] kthread+0x38b/0x480 [ 72.734507][ T4944] ? __pfx_kjournald2+0x10/0x10 [ 72.739371][ T4944] ? __pfx_kthread+0x10/0x10 [ 72.743952][ T4944] ret_from_fork+0x514/0xb70 [ 72.748531][ T4944] ? __pfx_ret_from_fork+0x10/0x10 [ 72.753640][ T4944] ? __switch_to+0xc89/0x1420 [ 72.758302][ T4944] ? __pfx_kthread+0x10/0x10 [ 72.762898][ T4944] ret_from_fork_asm+0x1a/0x30 [ 72.767660][ T4944] [ 72.770694][ T4944] Modules linked in: [ 72.774805][ T4944] ---[ end trace 0000000000000000 ]--- [ 72.780396][ T4944] RIP: 0010:__bh_submit+0x22d/0x8d0 [ 72.780428][ T4944] Code: c1 e8 03 48 89 44 24 18 42 80 3c 20 00 74 08 48 89 df e8 f6 e7 d7 ff 48 89 5c 24 28 48 8b 1b 4c 8d 7b 08 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 d4 e7 d7 ff 4d 8b 3f 4c 89 fe 48 [ 72.780442][ T4944] RSP: 0018:ffffc9000e317868 EFLAGS: 00010202 [ 72.780458][ T4944] RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff84b9d9a9 [ 72.780467][ T4944] RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff88807538a2a0 [ 72.780474][ T4944] RBP: 0000000000009801 R08: ffff88807538a2ff R09: 1ffff1100ea7145f [ 72.780481][ T4944] R10: dffffc0000000000 R11: ffffed100ea71460 R12: dffffc0000000000 [ 72.780488][ T4944] R13: ffff88807538a280 R14: ffff88807656dee0 R15: 0000000000000008 [ 72.780496][ T4944] FS: 0000000000000000(0000) GS:ffff88812495b000(0000) knlGS:0000000000000000 [ 72.780504][ T4944] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 72.780511][ T4944] CR2: 00007f4e503eb840 CR3: 000000000ed48000 CR4: 00000000003526f0 [ 72.780523][ T4944] Kernel panic - not syncing: Fatal exception [ 72.881287][ T4944] Kernel Offset: disabled [ 72.885602][ T4944] Rebooting in 86400 seconds..