loop5: detected capacity change from 0 to 32768 BUG at fs/jfs/jfs_dmap.c:2984 assert(bitno < 32) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_dmap.c:2984! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 18058 Comm: syz-executor.5 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : dbFindBits fs/jfs/jfs_dmap.c:2984 [inline] pc : dbAllocNear+0x2d4/0x2d8 fs/jfs/jfs_dmap.c:1224 lr : dbFindBits fs/jfs/jfs_dmap.c:2984 [inline] lr : dbAllocNear+0x2d4/0x2d8 fs/jfs/jfs_dmap.c:1224 sp : ffff80002223b790 x29: ffff80002223b790 x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000000 x25: 0000000000000020 x24: 0000000000000001 x23: 0000000000000020 x22: ffff000128f9d000 x21: ffff000128f91000 x20: 0000000000000001 x19: ffff80002223b880 x18: 00000000000001ad x17: 0000000000000000 x16: ffff80000db49158 x15: ffff00012d728000 x14: 0000000000000000 x13: 00000000ffffffff x12: 0000000000040000 x11: 0000000000006b55 x10: ffff80001281d000 x9 : 6c43fce912d89100 x8 : 6c43fce912d89100 x7 : ffff800008161d1c x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0001fefddcd0 x1 : 0000000100000000 x0 : 0000000000000030 Call trace: dbFindBits fs/jfs/jfs_dmap.c:2984 [inline] dbAllocNear+0x2d4/0x2d8 fs/jfs/jfs_dmap.c:1224 dbAlloc+0x4fc/0x694 fs/jfs/jfs_dmap.c:813 ea_get+0x354/0x548 fs/jfs/xattr.c:514 __jfs_setxattr+0x2ac/0x5f4 fs/jfs/xattr.c:718 __jfs_xattr_set+0x84/0x108 fs/jfs/xattr.c:917 jfs_xattr_set+0x58/0x70 fs/jfs/xattr.c:941 __vfs_setxattr+0x250/0x260 fs/xattr.c:182 __vfs_setxattr_noperm+0xcc/0x320 fs/xattr.c:216 __vfs_setxattr_locked+0x16c/0x194 fs/xattr.c:277 vfs_setxattr+0x174/0x280 fs/xattr.c:313 do_setxattr fs/xattr.c:600 [inline] setxattr fs/xattr.c:623 [inline] path_setxattr+0x354/0x414 fs/xattr.c:642 __do_sys_setxattr fs/xattr.c:658 [inline] __se_sys_setxattr fs/xattr.c:654 [inline] __arm64_sys_setxattr+0x2c/0x40 fs/xattr.c:654 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 Code: 91052821 91110863 52817502 94c9993b (d4210000) ---[ end trace 0000000000000000 ]---