read_mapping_page failed! ERROR: (device loop0): txCommit: BUG at fs/jfs/jfs_dmap.c:3028 assert(bitno < 32) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_dmap.c:3028! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5345 Comm: syz.0.0 Not tainted 6.16.0-rc5-syzkaller #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:dbFindBits+0x19e/0x1a0 fs/jfs/jfs_dmap.c:3028 Code: ea fd 90 0f 0b e8 d2 af 82 fe 48 c7 c7 40 c9 c3 8b 48 c7 c6 80 c6 c3 8b ba d4 0b 00 00 48 c7 c1 20 d1 c3 8b e8 d3 26 ea fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 RSP: 0018:ffffc9000d347190 EFLAGS: 00010246 RAX: 0000000000000030 RBX: 0000000000000000 RCX: 83f85385ef805500 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 00000000ffffffff R08: ffff88801fc24293 R09: 1ffff11003f84852 R10: dffffc0000000000 R11: ffffed1003f84853 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000020 FS: 00007f6e03ff56c0(0000) GS:ffff88808d21d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6e03fd3fc8 CR3: 000000004450f000 CR4: 0000000000352ef0 Call Trace: dbAllocDmapLev+0x16b/0x3c0 fs/jfs/jfs_dmap.c:1977 dbAllocCtl+0x14a/0x9b0 fs/jfs/jfs_dmap.c:1817 dbAllocAG+0x1e8/0xf10 fs/jfs/jfs_dmap.c:1353 dbAlloc+0x5a8/0xba0 fs/jfs/jfs_dmap.c:877 dtSplitUp fs/jfs/jfs_dtree.c:982 [inline] dtInsert+0xad5/0x5f40 fs/jfs/jfs_dtree.c:871 jfs_create+0x6c8/0xa80 fs/jfs/namei.c:137 lookup_open fs/namei.c:3717 [inline] open_last_lookups fs/namei.c:3816 [inline] path_openat+0x14f4/0x3830 fs/namei.c:4052 do_filp_open+0x1fa/0x410 fs/namei.c:4082 do_sys_openat2+0x121/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_creat fs/open.c:1530 [inline] __se_sys_creat fs/open.c:1524 [inline] __x64_sys_creat+0x8f/0xc0 fs/open.c:1524 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6e07b8e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6e03ff5038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007f6e07db6080 RCX: 00007f6e07b8e929 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000580 RBP: 00007f6e07c10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f6e07db6080 R15: 00007fff72ef6c18 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:dbFindBits+0x19e/0x1a0 fs/jfs/jfs_dmap.c:3028 Code: ea fd 90 0f 0b e8 d2 af 82 fe 48 c7 c7 40 c9 c3 8b 48 c7 c6 80 c6 c3 8b ba d4 0b 00 00 48 c7 c1 20 d1 c3 8b e8 d3 26 ea fd 90 <0f> 0b 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 41 57 41 RSP: 0018:ffffc9000d347190 EFLAGS: 00010246 RAX: 0000000000000030 RBX: 0000000000000000 RCX: 83f85385ef805500 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 00000000ffffffff R08: ffff88801fc24293 R09: 1ffff11003f84852 R10: dffffc0000000000 R11: ffffed1003f84853 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000020 FS: 00007f6e03ff56c0(0000) GS:ffff88808d21d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff72ef5f98 CR3: 000000004450f000 CR4: 0000000000352ef0