BUG at fs/jfs/jfs_dmap.c:3036 assert(bitno < 32)
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kernel BUG at fs/jfs/jfs_dmap.c:3036!
Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4707 Comm: syz.3.52 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 62400005 (nZCv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--)
pc : dbFindBits+0x1ac/0x1b0 fs/jfs/jfs_dmap.c:3036
lr : dbFindBits+0x1ac/0x1b0 fs/jfs/jfs_dmap.c:3036
sp : ffff800021457190
x29: ffff800021457190 x28: ffff0000d4b85008 x27: 0000000000000004
x26: ffff0000d4b85804 x25: 0000000000000001 x24: 0000000000000000
x23: ffff80001560bf30 x22: 0000000000000020 x21: 0000000000000010
x20: 00000000ffffffff x19: 0000000000000004 x18: ffff800011a5bd40
x17: 0000000000000000 x16: ffff8000082d3a08 x15: 0000000000000002
x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000080000
x11: 000000000007ffff x10: ffff80002aba3000 x9 : a31dbfa639d35d00
x8 : a31dbfa639d35d00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff800021456c58 x4 : ffff800015134e00 x3 : ffff80000a84818c
x2 : ffff00019f73dd10 x1 : 0000000100000000 x0 : 0000000000000030
Call trace:
 dbFindBits+0x1ac/0x1b0 fs/jfs/jfs_dmap.c:3036
 dbAllocNear+0x1f4/0x350 fs/jfs/jfs_dmap.c:1243
 dbAlloc+0x72c/0x9dc fs/jfs/jfs_dmap.c:832
 extBalloc fs/jfs/jfs_extent.c:326 [inline]
 extAlloc+0x3f4/0xd64 fs/jfs/jfs_extent.c:122
 jfs_get_block+0x2bc/0x8b8 fs/jfs/inode.c:254
 get_more_blocks fs/direct-io.c:659 [inline]
 do_direct_IO fs/direct-io.c:947 [inline]
 __blockdev_direct_IO+0x112c/0x318c fs/direct-io.c:1260
 blockdev_direct_IO include/linux/fs.h:3344 [inline]
 jfs_direct_IO+0xf4/0x1dc fs/jfs/inode.c:342
 generic_file_direct_write+0x104/0x2b8 mm/filemap.c:3787
 __generic_file_write_iter+0x144/0x250 mm/filemap.c:3945
 generic_file_write_iter+0xb4/0x2b0 mm/filemap.c:3989
 call_write_iter include/linux/fs.h:2265 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x5ac/0x7c4 fs/read_write.c:584
 ksys_write+0x120/0x210 fs/read_write.c:637
 __do_sys_write fs/read_write.c:649 [inline]
 __se_sys_write fs/read_write.c:646 [inline]
 __arm64_sys_write+0x7c/0x90 fs/read_write.c:646
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585
Code: 90042ac3 911c8063 52817b82 95fea049 (d4210000) 
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