loop0: detected capacity change from 0 to 1024 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 1 UID: 0 PID: 6413 Comm: syz.0.160 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 RIP: 0010:hfsplus_create_attributes_file fs/hfsplus/xattr.c:320 [inline] RIP: 0010:__hfsplus_setxattr+0x2437/0x2ab0 fs/hfsplus/xattr.c:432 Code: 30 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 6a 02 00 00 48 8b 5b 30 b8 ff ff 37 00 48 c1 e0 2a 48 8d 7b 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 34 02 00 00 48 8b 5b 08 be 08 00 00 00 4c 89 5c RSP: 0018:ffffc90006897480 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90005db2000 RDX: 0000000000000001 RSI: ffffffff82f7efa9 RDI: 0000000000000008 RBP: ffff88807b0b4000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: ffff88807b9d4000 R12: ffff88802a970000 R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90006897560 FS: 00007f3fc96366c0(0000) GS:ffff88812442c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001400 CR3: 0000000026069000 CR4: 0000000000350ef0 Call Trace: hfsplus_setxattr+0x11a/0x2c0 fs/hfsplus/xattr.c:555 __vfs_setxattr+0x175/0x1e0 fs/xattr.c:218 __vfs_setxattr_noperm+0x127/0x660 fs/xattr.c:252 __vfs_setxattr_locked+0x127/0x2b0 fs/xattr.c:313 vfs_setxattr+0x14a/0x390 fs/xattr.c:339 do_setxattr+0x145/0x180 fs/xattr.c:654 filename_setxattr+0x167/0x1d0 fs/xattr.c:682 path_setxattrat+0x1ff/0x3b0 fs/xattr.c:726 __do_sys_setxattr fs/xattr.c:760 [inline] __se_sys_setxattr fs/xattr.c:756 [inline] __x64_sys_setxattr+0xc6/0x140 fs/xattr.c:756 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x10b/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3fc879c819 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3fc9636028 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc RAX: ffffffffffffffda RBX: 00007f3fc8a15fa0 RCX: 00007f3fc879c819 RDX: 0000200000001400 RSI: 00002000000001c0 RDI: 0000200000000380 RBP: 00007f3fc8832c91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000835 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3fc8a16038 R14: 00007f3fc8a15fa0 R15: 00007ffd2fc63098 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:hfsplus_create_attributes_file fs/hfsplus/xattr.c:320 [inline] RIP: 0010:__hfsplus_setxattr+0x2437/0x2ab0 fs/hfsplus/xattr.c:432 Code: 30 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 6a 02 00 00 48 8b 5b 30 b8 ff ff 37 00 48 c1 e0 2a 48 8d 7b 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 34 02 00 00 48 8b 5b 08 be 08 00 00 00 4c 89 5c RSP: 0018:ffffc90006897480 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90005db2000 RDX: 0000000000000001 RSI: ffffffff82f7efa9 RDI: 0000000000000008 RBP: ffff88807b0b4000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: ffff88807b9d4000 R12: ffff88802a970000 R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90006897560 FS: 00007f3fc96366c0(0000) GS:ffff88812432c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f053c7e92f8 CR3: 0000000026069000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: 30 48 89 xor %cl,-0x77(%rax) 3: fa cli 4: 48 c1 ea 03 shr $0x3,%rdx 8: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) c: 0f 85 6a 02 00 00 jne 0x27c 12: 48 8b 5b 30 mov 0x30(%rbx),%rbx 16: b8 ff ff 37 00 mov $0x37ffff,%eax 1b: 48 c1 e0 2a shl $0x2a,%rax 1f: 48 8d 7b 08 lea 0x8(%rbx),%rdi 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 34 02 00 00 jne 0x268 34: 48 8b 5b 08 mov 0x8(%rbx),%rbx 38: be 08 00 00 00 mov $0x8,%esi 3d: 4c rex.WR 3e: 89 .byte 0x89 3f: 5c pop %rsp