BUG at fs/jfs/jfs_dmap.c:3028 assert(bitno < 32) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_dmap.c:3028! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 8135 Comm: syz-executor.0 Not tainted 6.1.86-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : dbFindBits+0x1e0/0x1e4 fs/jfs/jfs_dmap.c:3028 lr : dbFindBits+0x1e0/0x1e4 fs/jfs/jfs_dmap.c:3028 sp : ffff80001ffc6fd0 x29: ffff80001ffc6fd0 x28: 00000000ffffffff x27: 1ffff00003ff8e04 x26: dfff800000000000 x25: 0000000000000000 x24: 0000000000000000 x23: ffff800015ddecb0 x22: 0000000000000020 x21: 0000000000000000 x20: 0000000000000001 x19: 0000000000000000 x18: 1fffe0003686b376 x17: ffff80001583d000 x16: ffff800012156b1c x15: ffff0001b4359bbc x14: 1ffff00002b080b0 x13: dfff800000000000 x12: 0000000000040000 x11: 00000000000144d1 x10: ffff80001ea8b000 x9 : 221b18d93a435800 x8 : 221b18d93a435800 x7 : ffff80000827c8d4 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : ffff80000aa9130c x2 : ffff0001b4359cd0 x1 : 0000000100000000 x0 : 0000000000000030 Call trace: dbFindBits+0x1e0/0x1e4 fs/jfs/jfs_dmap.c:3028 dbAllocDmapLev+0x194/0x414 fs/jfs/jfs_dmap.c:1983 dbAllocCtl+0x104/0x844 fs/jfs/jfs_dmap.c:1823 dbAllocAG+0x208/0xe4c fs/jfs/jfs_dmap.c:1364 dbAlloc+0x520/0xb68 fs/jfs/jfs_dmap.c:888 dtSplitUp fs/jfs/jfs_dtree.c:979 [inline] dtInsert+0xab0/0x54f4 fs/jfs/jfs_dtree.c:868 jfs_symlink+0x718/0xef4 fs/jfs/namei.c:1019 vfs_symlink+0x244/0x3a8 fs/namei.c:4473 do_symlinkat+0x1bc/0x45c fs/namei.c:4502 __do_sys_symlinkat fs/namei.c:4519 [inline] __se_sys_symlinkat fs/namei.c:4516 [inline] __arm64_sys_symlinkat+0xa4/0xbc fs/namei.c:4516 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x168 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: 900463a3 91060063 52817a82 95961250 (d4210000) ---[ end trace 0000000000000000 ]---