netlink: 28 bytes leftover after parsing attributes in process `syz.0.90'. netlink: 28 bytes leftover after parsing attributes in process `syz.0.90'. BUG at fs/jfs/jfs_dmap.c:3084 assert(nb <= DBWORD) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_dmap.c:3084! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 4544 Comm: syz.0.90 Not tainted 5.15.169-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : dbFindBits+0x1b8/0x1e4 fs/jfs/jfs_dmap.c:3084 lr : dbFindBits+0x1b8/0x1e4 fs/jfs/jfs_dmap.c:3084 sp : ffff800020ac7730 x29: ffff800020ac7730 x28: 00000000ffffffff x27: 1ffff00004158ef0 x26: dfff800000000000 x25: ffff0000eb742800 x24: 000000000000000a x23: 0000000000000000 x22: ffff0000e4bf7000 x21: 00000000ffffffff x20: 0000000000000400 x19: 000000000000000a x18: ffff800020ac6d60 x17: 1fffe0003683618e x16: ffff800011ab8424 x15: 0000000000023c0a x14: 1ffff0000295606a x13: dfff800000000000 x12: 0000000000040000 x11: 0000000000005669 x10: ffff800020dc9000 x9 : 888df86ff15fd100 x8 : 888df86ff15fd100 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000a9830bc x2 : ffff0001b41b0d10 x1 : 0000000100000000 x0 : 0000000000000032 Call trace: dbFindBits+0x1b8/0x1e4 fs/jfs/jfs_dmap.c:3084 dbAllocDmapLev+0x194/0x414 fs/jfs/jfs_dmap.c:2051 dbAllocCtl+0x104/0x878 fs/jfs/jfs_dmap.c:1891 dbAllocAG+0x208/0xe4c fs/jfs/jfs_dmap.c:1432 dbDiscardAG+0x240/0x728 fs/jfs/jfs_dmap.c:1681 jfs_ioc_trim+0x3f4/0x5f0 fs/jfs/jfs_discard.c:105 jfs_ioctl+0x350/0x574 fs/jfs/ioctl.c:132 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: b0043423 91130063 52818182 9599664a (d4210000) ---[ end trace 27dfbdddaa42e923 ]---