Oops: general protection fault, probably for non-canonical address 0xdffffc0100000001: 0000 [#1] SMP KASAN NOPTI KASAN: probably user-memory-access in range [0x0000000800000008-0x000000080000000f] CPU: 0 UID: 0 PID: 5749 Comm: syz-executor Not tainted 6.15.0-rc6-syzkaller-00300-g205b2bd7939c #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__hlist_del include/linux/list.h:982 [inline] RIP: 0010:hlist_del_init_rcu include/linux/rculist.h:228 [inline] RIP: 0010:__remove_inode_hash fs/inode.c:685 [inline] RIP: 0010:remove_inode_hash include/linux/fs.h:3335 [inline] RIP: 0010:evict+0x679/0x9c0 fs/inode.c:818 Code: e8 ac b0 e7 ff 48 89 da 4c 89 22 4d 85 e4 74 57 e8 5c b6 85 ff 49 83 c4 08 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 e7 e8 79 b0 e7 ff 49 89 1c 24 eb 2e e8 2e RSP: 0018:ffffc90002a6fb00 EFLAGS: 00010202 RAX: 0000000100000001 RBX: ffffc900000f95b8 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc90002a6fa80 RBP: ffffc90002a6fc30 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff5200054df50 R12: 0000000800000008 R13: ffff8880422fbd08 R14: ffff8880422fbc00 R15: 1ffff1100845f7a1 FS: 0000555557b17500(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0003f1870 CR3: 000000004366a000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dispose_list fs/inode.c:852 [inline] evict_inodes+0x636/0x6c0 fs/inode.c:906 generic_shutdown_super+0x9a/0x2c0 fs/super.c:627 kill_block_super+0x44/0x90 fs/super.c:1710 deactivate_locked_super+0xb9/0x130 fs/super.c:473 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1431 task_work_run+0x1d4/0x260 kernel/task_work.c:227 resume_user_mode_work+0x5e/0x80 include/linux/resume_user_mode.h:50 exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x9a/0x120 kernel/entry/common.c:218 do_syscall_64+0x103/0x210 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6517d8fc97 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffeeb957788 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f6517e1089d RCX: 00007f6517d8fc97 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffeeb957840 RBP: 00007ffeeb957840 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffeeb9588d0 R13: 00007f6517e1089d R14: 000000000002299a R15: 00007ffeeb958910 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__hlist_del include/linux/list.h:982 [inline] RIP: 0010:hlist_del_init_rcu include/linux/rculist.h:228 [inline] RIP: 0010:__remove_inode_hash fs/inode.c:685 [inline] RIP: 0010:remove_inode_hash include/linux/fs.h:3335 [inline] RIP: 0010:evict+0x679/0x9c0 fs/inode.c:818 Code: e8 ac b0 e7 ff 48 89 da 4c 89 22 4d 85 e4 74 57 e8 5c b6 85 ff 49 83 c4 08 4c 89 e0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 e7 e8 79 b0 e7 ff 49 89 1c 24 eb 2e e8 2e RSP: 0018:ffffc90002a6fb00 EFLAGS: 00010202 RAX: 0000000100000001 RBX: ffffc900000f95b8 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffc90002a6fa80 RBP: ffffc90002a6fc30 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffff5200054df50 R12: 0000000800000008 R13: ffff8880422fbd08 R14: ffff8880422fbc00 R15: 1ffff1100845f7a1 FS: 0000555557b17500(0000) GS:ffff88808d6c2000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0003f1870 CR3: 000000004366a000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e8 ac b0 e7 ff call 0xffe7b0b1 5: 48 89 da mov %rbx,%rdx 8: 4c 89 22 mov %r12,(%rdx) b: 4d 85 e4 test %r12,%r12 e: 74 57 je 0x67 10: e8 5c b6 85 ff call 0xff85b671 15: 49 83 c4 08 add $0x8,%r12 19: 4c 89 e0 mov %r12,%rax 1c: 48 c1 e8 03 shr $0x3,%rax 20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 27: fc ff df * 2a: 80 3c 08 00 cmpb $0x0,(%rax,%rcx,1) <-- trapping instruction 2e: 74 08 je 0x38 30: 4c 89 e7 mov %r12,%rdi 33: e8 79 b0 e7 ff call 0xffe7b0b1 38: 49 89 1c 24 mov %rbx,(%r12) 3c: eb 2e jmp 0x6c 3e: e8 .byte 0xe8 3f: 2e cs