el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:131 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:150 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 ------------[ cut here ]------------ kernel BUG at fs/btrfs/extent-tree.c:3452! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 6810 Comm: syz.0.100 Not tainted 6.10.0-rc7-syzkaller-gc912bf709078 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_free_tree_block+0xbf4/0xc00 fs/btrfs/extent-tree.c:3452 lr : btrfs_free_tree_block+0xbf4/0xc00 fs/btrfs/extent-tree.c:3452 sp : ffff8000a02470c0 x29: ffff8000a02471c0 x28: ffff700014048e20 x27: ffff0000ec3e6000 x26: ffff0000d8721a40 x25: ffff0000ec3e6064 x24: 00000000fffffff4 x23: 0000000000000001 x22: 0000000000000005 x21: ffff80008ea8e298 x20: ffff0000dbaa2378 x19: dfff800000000000 x18: ffff8000a0246a40 x17: 000000000002cb5f x16: ffff80008032d32c x15: 0000000000000001 x14: 1ffff00011f381ee x13: 0000000000000000 x12: 0000000000000003 x11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000cc6a9e40 x7 : ffff80008005dba0 x6 : ffff80008005dd9c x5 : ffff0000ccdaebe8 x4 : ffff8000a0246c48 x3 : 0000000000000000 x2 : 0000000000000006 x1 : 00000000fffffff4 x0 : 0000000000000000 Call trace: btrfs_free_tree_block+0xbf4/0xc00 fs/btrfs/extent-tree.c:3452 btrfs_force_cow_block+0xea8/0x1a58 fs/btrfs/ctree.c:623 btrfs_cow_block+0x318/0xa28 fs/btrfs/ctree.c:746 btrfs_search_slot+0xba0/0x2a08 btrfs_lookup_match_dir fs/btrfs/dir-item.c:187 [inline] btrfs_lookup_xattr+0x144/0x234 fs/btrfs/dir-item.c:369 btrfs_setxattr+0x178/0x748 fs/btrfs/xattr.c:104 btrfs_setxattr_trans+0xf8/0x2a8 fs/btrfs/xattr.c:262 __btrfs_set_acl+0x144/0x2e4 fs/btrfs/acl.c:101 btrfs_set_acl+0x140/0x204 fs/btrfs/acl.c:125 set_posix_acl fs/posix_acl.c:955 [inline] vfs_set_acl+0x7a0/0xa24 fs/posix_acl.c:1134 do_set_acl+0xc8/0x1ac fs/posix_acl.c:1279 do_setxattr fs/xattr.c:626 [inline] setxattr+0x230/0x29c fs/xattr.c:652 path_setxattr+0x17c/0x258 fs/xattr.c:671 __do_sys_lsetxattr fs/xattr.c:694 [inline] __se_sys_lsetxattr fs/xattr.c:690 [inline] __arm64_sys_lsetxattr+0xbc/0xd8 fs/xattr.c:690 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:131 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:150 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Code: 5281aee3 957545d8 d4210000 978ee28a (d4210000) ---[ end trace 0000000000000000 ]---