Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.23' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 33.765903] EXT4-fs (loop0): mounted filesystem without journal. Opts: ,errors=continue [ 33.791840] Quota error (device loop0): free_dqentry: Quota structure has offset to other block (0) than it should (5) [ 33.804907] Quota error (device loop0): qtree_write_dquot: Error -641722073 occurred while creating quota [ 33.816024] BUG: unable to handle kernel paging request at fffffbfffb38033f [ 33.823115] PGD 23fff1067 P4D 23fff1067 PUD 23fff0067 PMD 0 [ 33.828899] Oops: 0000 [#1] PREEMPT SMP KASAN [ 33.833375] CPU: 0 PID: 8085 Comm: syz-executor215 Not tainted 4.19.211-syzkaller #0 [ 33.841235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 33.850609] RIP: 0010:__lock_acquire+0x1eb/0x3ff0 [ 33.855539] Code: 2b 29 00 00 48 81 c4 98 01 00 00 44 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 b3 2a 00 00 49 81 3e 20 f2 66 8c 0f 84 65 ff ff [ 33.874426] RSP: 0018:ffff88809564f5a0 EFLAGS: 00010807 [ 33.879771] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 33.887028] RDX: 1ffffffffb38033f RSI: 0000000000000000 RDI: 0000000000000001 [ 33.894282] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 [ 33.901541] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 [ 33.908796] R13: ffff888096c940c0 R14: ffffffffd9c019ff R15: 0000000000000001 [ 33.916050] FS: 0000555556490300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 33.924257] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.930217] CR2: fffffbfffb38033f CR3: 00000000afd06000 CR4: 00000000003406f0 [ 33.937468] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.944716] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.951966] Call Trace: [ 33.954552] ? __lock_acquire+0x6de/0x3ff0 [ 33.958767] ? mark_held_locks+0xf0/0xf0 [ 33.962820] ? mark_held_locks+0xf0/0xf0 [ 33.966858] ? __getblk_gfp+0x48/0x70 [ 33.970742] ? ext4_getblk+0x35a/0x4f0 [ 33.974693] ? do_syscall_64+0xf9/0x620 [ 33.978646] lock_acquire+0x170/0x3c0 [ 33.982438] ? dquot_add_inodes+0x34/0x9a0 [ 33.986664] _raw_spin_lock+0x2a/0x40 [ 33.990453] ? dquot_add_inodes+0x34/0x9a0 [ 33.994669] dquot_add_inodes+0x34/0x9a0 [ 33.998710] ? ext4_listxattr+0xb90/0xb90 [ 34.002842] __dquot_transfer+0xf3a/0x18a0 [ 34.007078] ? __dquot_alloc_space+0x860/0x860 [ 34.011759] ? dqput.part.0+0x63f/0x830 [ 34.015717] ? lock_downgrade+0x720/0x720 [ 34.019935] ? lock_acquire+0x170/0x3c0 [ 34.023893] ? do_raw_spin_unlock+0x171/0x230 [ 34.028373] ? rwsem_down_read_failed_killable+0x2e0/0x580 [ 34.033978] ? dqput.part.0+0x63f/0x830 [ 34.037940] ? dqget+0x171/0xfc0 [ 34.041298] ? dquot_writeback_dquots+0x9e0/0x9e0 [ 34.046122] dquot_transfer+0x2ee/0x4c0 [ 34.050089] ? __dquot_transfer+0x18a0/0x18a0 [ 34.054566] ? ext4_setattr+0x57f/0x2560 [ 34.058607] ext4_setattr+0x58a/0x2560 [ 34.062474] ? evm_verify_current_integrity+0x87/0xf0 [ 34.067640] ? evm_inode_setattr+0x6a/0x170 [ 34.071942] ? ext4_evict_inode+0x17b0/0x17b0 [ 34.076418] notify_change+0x70b/0xfc0 [ 34.080307] chown_common+0x4a9/0x550 [ 34.084085] ? lock_set_class+0x5ed/0x6d0 [ 34.088211] ? chmod_common+0x3f0/0x3f0 [ 34.092166] ? check_preemption_disabled+0x41/0x280 [ 34.097161] ? preempt_count_add+0xaf/0x190 [ 34.101469] ? __mnt_want_write+0x22c/0x2c0 [ 34.105767] do_fchownat+0x126/0x1e0 [ 34.109458] ? __ia32_sys_chmod+0x80/0x80 [ 34.113590] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 34.118943] ? trace_hardirqs_off_caller+0x6e/0x210 [ 34.123962] __x64_sys_chown+0x77/0xb0 [ 34.127839] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 34.132408] do_syscall_64+0xf9/0x620 [ 34.136202] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 34.141371] RIP: 0033:0x7f7f06f5a7c9 [ 34.145129] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 34.164022] RSP: 002b:00007ffcf379b418 EFLAGS: 00000246 ORIG_RAX: 000000000000005c [ 34.171709] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f7f06f5a7c9 [ 34.178962] RDX: 000000000000ee00 RSI: 000000000000ee01 RDI: 0000000020000080 [ 34.186229] RBP: 00007f7f06f1a060 R08: 0000000000000000 R09: 0000000000000000 [ 34.193477] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7f06f1a0f0 [ 34.200724] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 34.207983] Modules linked in: [ 34.211159] CR2: fffffbfffb38033f [ 34.214593] ---[ end trace 87e8f24fb4765252 ]--- [ 34.219334] RIP: 0010:__lock_acquire+0x1eb/0x3ff0 [ 34.224159] Code: 2b 29 00 00 48 81 c4 98 01 00 00 44 89 f8 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 <80> 3c 02 00 0f 85 b3 2a 00 00 49 81 3e 20 f2 66 8c 0f 84 65 ff ff [ 34.243039] RSP: 0018:ffff88809564f5a0 EFLAGS: 00010807 [ 34.248380] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 34.255642] RDX: 1ffffffffb38033f RSI: 0000000000000000 RDI: 0000000000000001 [ 34.262888] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 [ 34.270136] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 [ 34.277408] R13: ffff888096c940c0 R14: ffffffffd9c019ff R15: 0000000000000001 [ 34.284657] FS: 0000555556490300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 34.292859] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 34.299068] CR2: fffffbfffb38033f CR3: 00000000afd06000 CR4: 00000000003406f0 [ 34.306318] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 34.314002] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 34.321248] Kernel panic - not syncing: Fatal exception [ 34.326869] Kernel Offset: disabled [ 34.330480] Rebooting in 86400 seconds..