ialloc: diAlloc returned -5! BUG at fs/jfs/jfs_dmap.c:3013 assert(nb <= DBWORD) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_dmap.c:3013! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 8140 Comm: syz.3.232 Not tainted 6.16.0-rc2-syzkaller-00318-g739a6c93cc75 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:dbFindBits+0x177/0x1a0 fs/jfs/jfs_dmap.c:3013 Code: e9 20 ff ff ff e8 99 e2 84 fe 48 c7 c7 00 b0 c3 8b 48 c7 c6 40 ad c3 8b ba c5 0b 00 00 48 c7 c1 c0 b7 c3 8b e8 3a 11 ec fd 90 <0f> 0b e8 72 e2 84 fe 48 c7 c7 00 b0 c3 8b 48 c7 c6 40 ad c3 8b ba RSP: 0018:ffffc90003d8fac0 EFLAGS: 00010246 RAX: 0000000000000032 RBX: 000000000000000a RCX: 46966af04b50b300 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 00000000ffffffff R08: ffffc90003d8f7e7 R09: 1ffff920007b1efc R10: dffffc0000000000 R11: fffff520007b1efd R12: 0000000000000000 R13: 000000000000000a R14: 0000000000000400 R15: ffff888011c9c000 FS: 00007f5872d7a6c0(0000) GS:ffff888125c85000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6838584000 CR3: 000000007801a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dbAllocDmapLev+0x16b/0x3c0 fs/jfs/jfs_dmap.c:1977 dbAllocCtl+0x14a/0x9b0 fs/jfs/jfs_dmap.c:1817 dbAllocAG+0x1e8/0xf10 fs/jfs/jfs_dmap.c:1353 dbDiscardAG+0x2df/0x900 fs/jfs/jfs_dmap.c:1602 jfs_ioc_trim+0x429/0x690 fs/jfs/jfs_discard.c:106 jfs_ioctl+0x2b5/0x3d0 fs/jfs/ioctl.c:131 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5871f8e929 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f5872d7a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f58721b5fa0 RCX: 00007f5871f8e929 RDX: 0000200000000000 RSI: 00000000c0185879 RDI: 0000000000000006 RBP: 00007f5872010b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f58721b5fa0 R15: 00007ffc986375b8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:dbFindBits+0x177/0x1a0 fs/jfs/jfs_dmap.c:3013 Code: e9 20 ff ff ff e8 99 e2 84 fe 48 c7 c7 00 b0 c3 8b 48 c7 c6 40 ad c3 8b ba c5 0b 00 00 48 c7 c1 c0 b7 c3 8b e8 3a 11 ec fd 90 <0f> 0b e8 72 e2 84 fe 48 c7 c7 00 b0 c3 8b 48 c7 c6 40 ad c3 8b ba RSP: 0018:ffffc90003d8fac0 EFLAGS: 00010246 RAX: 0000000000000032 RBX: 000000000000000a RCX: 46966af04b50b300 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 00000000ffffffff R08: ffffc90003d8f7e7 R09: 1ffff920007b1efc R10: dffffc0000000000 R11: fffff520007b1efd R12: 0000000000000000 R13: 000000000000000a R14: 0000000000000400 R15: ffff888011c9c000 FS: 00007f5872d7a6c0(0000) GS:ffff888125d85000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000560aa112e078 CR3: 000000007801a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400