Re: [syzbot] [xfs?] KASAN: slab-use-after-free Read in xfs_buf_rele (4)

syzbot
2026-01-19T09:29:02Z

Hello,

syzbot tried to test the proposed patch but the build/boot failed:

./include/linux/srcu.h:197:2: error: call to undeclared function 'lock_sync'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
./include/linux/semaphore.h:52:28: error: field designator 'name' does not refer to any field in type 'struct lockdep_map'
./include/linux/semaphore.h:52:28: error: field designator 'wait_type_inner' does not refer to any field in type 'struct lockdep_map'

Tested on:

commit: 9f73447f disable lockdep
git tree: git://git.infradead.org/users/hch/xfs.git xfs-buf-hash
kernel config: https://syzkaller.appspot.com/x/.config?x=8c5ac3d8b8abfcb
dashboard link: https://syzkaller.appspot.com/bug?extid=0391d34e801643e2809b
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8