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] PREEMPT SMP KASAN PTI CPU: 1 PID: 6871 Comm: syz-executor.1 Not tainted 6.10.0-rc4-syzkaller-00330-g7c16f0a4ed1c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:dbFindBits+0x145/0x170 fs/jfs/jfs_dmap.c:3028 Code: 45 31 ed eb e6 e8 3b 6d 87 fe 48 c7 c1 c0 a7 6a 8b ba d4 0b 00 00 48 c7 c6 00 a6 6a 8b 48 c7 c7 80 a6 6a 8b e8 5c dd 67 fe 90 <0f> 0b e8 14 6d 87 fe 48 c7 c1 80 a7 6a 8b ba c5 0b 00 00 48 c7 c6 RSP: 0018:ffffc900033eef80 EFLAGS: 00010286 RAX: 0000000000000030 RBX: 0000000000000000 RCX: ffffc9000a613000 RDX: 0000000000000000 RSI: ffffffff816ef706 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000020 R14: 00000000ffffffff R15: 00000000000000ff FS: 00007ff36e9ef6c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4b480e56c6 CR3: 0000000060bfa000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dbAllocDmapLev+0x241/0x2f0 fs/jfs/jfs_dmap.c:1983 dbAllocCtl+0x12c/0x7b0 fs/jfs/jfs_dmap.c:1823 dbAllocAG+0x8c9/0xd30 fs/jfs/jfs_dmap.c:1364 dbAlloc+0x415/0xab0 fs/jfs/jfs_dmap.c:888 dtSplitUp+0x3f3/0x5840 fs/jfs/jfs_dtree.c:979 dtInsert+0x876/0xb00 fs/jfs/jfs_dtree.c:868 jfs_create+0x640/0xb40 fs/jfs/namei.c:137 lookup_open.isra.0+0x10a1/0x13c0 fs/namei.c:3505 open_last_lookups fs/namei.c:3574 [inline] path_openat+0x92f/0x29f0 fs/namei.c:3804 do_filp_open+0x1dc/0x430 fs/namei.c:3834 do_sys_openat2+0x17a/0x1e0 fs/open.c:1405 do_sys_open fs/open.c:1420 [inline] __do_sys_openat fs/open.c:1436 [inline] __se_sys_openat fs/open.c:1431 [inline] __x64_sys_openat+0x175/0x210 fs/open.c:1431 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff36dc7d0a9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff36e9ef0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ff36ddb4050 RCX: 00007ff36dc7d0a9 RDX: 000000000000275a RSI: 0000000020000000 RDI: ffffffffffffff9c RBP: 00007ff36dcec074 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007ff36ddb4050 R15: 00007fff0c171058 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:dbFindBits+0x145/0x170 fs/jfs/jfs_dmap.c:3028 Code: 45 31 ed eb e6 e8 3b 6d 87 fe 48 c7 c1 c0 a7 6a 8b ba d4 0b 00 00 48 c7 c6 00 a6 6a 8b 48 c7 c7 80 a6 6a 8b e8 5c dd 67 fe 90 <0f> 0b e8 14 6d 87 fe 48 c7 c1 80 a7 6a 8b ba c5 0b 00 00 48 c7 c6 RSP: 0018:ffffc900033eef80 EFLAGS: 00010286 RAX: 0000000000000030 RBX: 0000000000000000 RCX: ffffc9000a613000 RDX: 0000000000000000 RSI: ffffffff816ef706 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000020 R14: 00000000ffffffff R15: 00000000000000ff FS: 00007ff36e9ef6c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4b480e56c6 CR3: 0000000060bfa000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400