BUG at fs/jfs/jfs_dmap.c:713 assert(nblocks > 0)
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kernel BUG at fs/jfs/jfs_dmap.c:713!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8082 Comm: syz-executor757 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
RIP: 0010:dbAlloc.cold+0x42/0x44 fs/jfs/jfs_dmap.c:713
Code: f9 e8 87 fe ff ff e8 c7 a1 69 f9 48 c7 c1 60 ff 9a 88 ba c9 02 00 00 48 c7 c6 60 f7 9a 88 48 c7 c7 a0 f7 9a 88 e8 13 d3 fa ff <0f> 0b e8 a1 a1 69 f9 e8 ec 64 9f f9 e8 2c fe ff ff e8 92 a1 69 f9
RSP: 0018:ffff8880956b7710 EFLAGS: 00010286
RAX: 0000000000000030 RBX: ffff8880b545c5a8 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1012ad6ed4
RBP: ffff8880b545c5a8 R08: 0000000000000030 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000007
R13: 0000000000000000 R14: ffff8880a55672c0 R15: 0000000000000004
FS: 0000555557257300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb1f60a06c0 CR3: 00000000a3f7b000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ea_get+0xa54/0x1180 fs/jfs/xattr.c:527
__jfs_setxattr+0xdb/0xf50 fs/jfs/xattr.c:684
__jfs_xattr_set+0xc9/0x150 fs/jfs/xattr.c:930
__vfs_setxattr+0x10e/0x170 fs/xattr.c:149
__vfs_setxattr_noperm+0x11a/0x420 fs/xattr.c:180
__vfs_setxattr_locked+0x176/0x250 fs/xattr.c:238
vfs_setxattr+0xe5/0x270 fs/xattr.c:255
setxattr+0x23d/0x330 fs/xattr.c:520
path_setxattr+0x170/0x190 fs/xattr.c:539
__do_sys_setxattr fs/xattr.c:554 [inline]
__se_sys_setxattr fs/xattr.c:550 [inline]
__x64_sys_setxattr+0xc0/0x160 fs/xattr.c:550
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fb1f60c7359
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 c0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe43274f78 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc
RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fb1f60c7359
RDX: 0000000000000000 RSI: 0000000020004e40 RDI: 0000000020004e00
RBP: 00007fb1f6110a20 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000200050c0
R13: 0000000020050120 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 48a75b8b01a5f548 ]---
RIP: 0010:dbAlloc.cold+0x42/0x44 fs/jfs/jfs_dmap.c:713
Code: f9 e8 87 fe ff ff e8 c7 a1 69 f9 48 c7 c1 60 ff 9a 88 ba c9 02 00 00 48 c7 c6 60 f7 9a 88 48 c7 c7 a0 f7 9a 88 e8 13 d3 fa ff <0f> 0b e8 a1 a1 69 f9 e8 ec 64 9f f9 e8 2c fe ff ff e8 92 a1 69 f9
RSP: 0018:ffff8880956b7710 EFLAGS: 00010286
RAX: 0000000000000030 RBX: ffff8880b545c5a8 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1012ad6ed4
RBP: ffff8880b545c5a8 R08: 0000000000000030 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000007
R13: 0000000000000000 R14: ffff8880a55672c0 R15: 0000000000000004
FS: 0000555557257300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f057403a0b8 CR3: 00000000a3f7b000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400