bcachefs (loop4): initializing new filesystem bcachefs (loop4): going read-write bcachefs (loop4): marking superblocks Oops: general protection fault, probably for non-canonical address 0xe01ffbf110170e75: 0000 [#1] SMP KASAN PTI KASAN: maybe wild-memory-access in range [0x00ffff8880b873a8-0x00ffff8880b873af] CPU: 1 UID: 0 PID: 5956 Comm: syz.4.7 Not tainted 6.15.0-rc1-syzkaller-00060-ga24588245776 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:kasan_byte_accessible+0x12/0x20 mm/kasan/generic.c:199 Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cc cc cc 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900045fda90 EFLAGS: 00010003 RAX: dffffc0000000000 RBX: 00ffff8880b873ad RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8c2b5dde RDI: 001ffff110170e75 RBP: ffffffff93657020 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed100516fe81 R12: 0000000000000001 R13: 0000000000000000 R14: ffffffff8c2b5dde R15: 00ffff8880b873ad FS: 00007f622bb676c0(0000) GS:ffff8881250c9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3070fff8 CR3: 000000004e632000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __kasan_check_byte+0x14/0x40 mm/kasan/common.c:556 kasan_check_byte include/linux/kasan.h:399 [inline] lock_acquire+0x89/0x2f0 kernel/locking/lockdep.c:5840 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 __queue_work+0x785/0x10a0 kernel/workqueue.c:-1 queue_work_on+0x1c4/0x380 kernel/workqueue.c:2392 queue_work include/linux/workqueue.h:662 [inline] __bch2_btree_node_write+0x37ba/0x4540 fs/bcachefs/btree_io.c:2469 bch2_btree_node_write_trans+0x91/0x7a0 fs/bcachefs/btree_io.c:2572 btree_split+0x6287/0x7fb0 fs/bcachefs/btree_update_interior.c:1708 bch2_btree_split_leaf+0x15b/0x8a0 fs/bcachefs/btree_update_interior.c:1870 bch2_trans_commit_error+0x1b3/0x1480 fs/bcachefs/btree_trans_commit.c:904 __bch2_trans_commit+0x8886/0x9da0 fs/bcachefs/btree_trans_commit.c:1069 bch2_trans_commit fs/bcachefs/btree_update.h:195 [inline] bch2_trans_mark_metadata_bucket+0x46e/0x1740 fs/bcachefs/buckets.c:1044 bch2_trans_mark_metadata_sectors fs/bcachefs/buckets.c:1061 [inline] __bch2_trans_mark_dev_sb fs/bcachefs/buckets.c:1101 [inline] bch2_trans_mark_dev_sb+0x438/0x850 fs/bcachefs/buckets.c:1129 bch2_trans_mark_dev_sbs_flags+0x6be/0x720 fs/bcachefs/buckets.c:1139 bch2_fs_initialize+0xba2/0x1620 fs/bcachefs/recovery.c:1149 bch2_fs_start+0x301/0x620 fs/bcachefs/super.c:1070 bch2_fs_get_tree+0x113e/0x18f0 fs/bcachefs/fs.c:2253 vfs_get_tree+0x90/0x2b0 fs/super.c:1759 do_new_mount+0x2cf/0xb70 fs/namespace.c:3879 do_mount fs/namespace.c:4219 [inline] __do_sys_mount fs/namespace.c:4430 [inline] __se_sys_mount+0x38c/0x400 fs/namespace.c:4407 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f622ad8e90a Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f622bb66e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f622bb66ef0 RCX: 00007f622ad8e90a RDX: 00002000000000c0 RSI: 0000200000000180 RDI: 00007f622bb66eb0 RBP: 00002000000000c0 R08: 00007f622bb66ef0 R09: 0000000000000012 R10: 0000000000000012 R11: 0000000000000246 R12: 0000200000000180 R13: 00007f622bb66eb0 R14: 0000000000005a73 R15: 0000200000000200 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:kasan_byte_accessible+0x12/0x20 mm/kasan/generic.c:199 Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 c3 cc cc cc cc 90 90 90 90 90 90 90 90 RSP: 0018:ffffc900045fda90 EFLAGS: 00010003 RAX: dffffc0000000000 RBX: 00ffff8880b873ad RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8c2b5dde RDI: 001ffff110170e75 RBP: ffffffff93657020 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffed100516fe81 R12: 0000000000000001 R13: 0000000000000000 R14: ffffffff8c2b5dde R15: 00ffff8880b873ad FS: 00007f622bb676c0(0000) GS:ffff8881250c9000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3070fff8 CR3: 000000004e632000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 7: 00 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 66 0f 1f 00 nopw (%rax) 1c: 48 c1 ef 03 shr $0x3,%rdi 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 0f b6 04 07 movzbl (%rdi,%rax,1),%eax <-- trapping instruction 2e: 3c 08 cmp $0x8,%al 30: 0f 92 c0 setb %al 33: c3 ret 34: cc int3 35: cc int3 36: cc int3 37: cc int3 38: 90 nop 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop