Hello, syzbot found the following issue on: HEAD commit: 231825b2e1ff Revert "unicode: Don't special case ignorable.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=133b4d44580000 kernel config: https://syzkaller.appspot.com/x/.config?x=99a5586995ec03b2 dashboard link: https://syzkaller.appspot.com/bug?extid=c2e074db555379260750 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=102844f8580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/41e68d86d902/disk-231825b2.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/0cb4e353f885/vmlinux-231825b2.xz kernel image: https://storage.googleapis.com/syzbot-assets/c4df524e0176/bzImage-231825b2.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c2e074db555379260750@xxxxxxxxxxxxxxxxxxxxxxxxx Oops: general protection fault, probably for non-canonical address 0xdffffc000000006c: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000360-0x0000000000000367] CPU: 0 UID: 0 PID: 8122 Comm: syz-executor Not tainted 6.13.0-rc2-syzkaller-00036-g231825b2e1ff #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:__lock_acquire+0xe4/0x3c40 kernel/locking/lockdep.c:5089 Code: 08 84 d2 0f 85 15 14 00 00 44 8b 0d 4a 00 a7 0e 45 85 c9 0f 84 b4 0e 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 96 2c 00 00 49 8b 04 24 48 3d a0 17 32 93 0f 84 RSP: 0018:ffffc9000d087990 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 000000000000006c RSI: 1ffff92001a10f44 RDI: 0000000000000360 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff901cc317 R11: 0000000000000002 R12: 0000000000000360 R13: ffff888034c38000 R14: 0000000000000000 R15: 0000000000000000 FS: 00005555879c4500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555879c4808 CR3: 0000000030ed6000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:351 [inline] task_lock include/linux/sched/task.h:229 [inline] find_lock_task_mm+0xd4/0x2f0 mm/oom_kill.c:140 __set_oom_adj.isra.0+0xcd8/0x1120 fs/proc/base.c:1157 oom_score_adj_write+0x1b8/0x200 fs/proc/base.c:1294 vfs_write+0x24c/0x1150 fs/read_write.c:677 ksys_write+0x12b/0x250 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3c079847cf Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 f9 92 02 00 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 4c 93 02 00 48 RSP: 002b:00007fffc0defcf0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3c079847cf RDX: 0000000000000004 RSI: 00007fffc0defd40 RDI: 0000000000000003 RBP: 00007f3c07a0320c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000004 R13: 00007fffc0defd40 R14: 00007fffc0df02a0 R15: 00007fffc0df02a0 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__lock_acquire+0xe4/0x3c40 kernel/locking/lockdep.c:5089 Code: 08 84 d2 0f 85 15 14 00 00 44 8b 0d 4a 00 a7 0e 45 85 c9 0f 84 b4 0e 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 96 2c 00 00 49 8b 04 24 48 3d a0 17 32 93 0f 84 RSP: 0018:ffffc9000d087990 EFLAGS: 00010006 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 000000000000006c RSI: 1ffff92001a10f44 RDI: 0000000000000360 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff901cc317 R11: 0000000000000002 R12: 0000000000000360 R13: ffff888034c38000 R14: 0000000000000000 R15: 0000000000000000 FS: 00005555879c4500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555879c4808 CR3: 0000000030ed6000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 08 84 d2 0f 85 15 14 or %al,0x1415850f(%rdx,%rdx,8) 7: 00 00 add %al,(%rax) 9: 44 8b 0d 4a 00 a7 0e mov 0xea7004a(%rip),%r9d # 0xea7005a 10: 45 85 c9 test %r9d,%r9d 13: 0f 84 b4 0e 00 00 je 0xecd 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 4c 89 e2 mov %r12,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 96 2c 00 00 jne 0x2cca 34: 49 8b 04 24 mov (%r12),%rax 38: 48 3d a0 17 32 93 cmp $0xffffffff933217a0,%rax 3e: 0f .byte 0xf 3f: 84 .byte 0x84 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
