EXT4-fs (loop1): Unrecognized mount option "î" or missing value ====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.5/25307 is trying to acquire lock: 00000000e8e278a4 (&ovl_i_mutex_dir_key[depth]#2){++++}, at: inode_lock_shared include/linux/fs.h:758 [inline] 00000000e8e278a4 (&ovl_i_mutex_dir_key[depth]#2){++++}, at: do_last fs/namei.c:3326 [inline] 00000000e8e278a4 (&ovl_i_mutex_dir_key[depth]#2){++++}, at: path_openat+0x17ec/0x2df0 fs/namei.c:3537 but task is already holding lock: 00000000eaa42906 (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds fs/exec.c:1419 [inline] 00000000eaa42906 (&sig->cred_guard_mutex){+.+.}, at: __do_execve_file+0x38c/0x2360 fs/exec.c:1762 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #4 (&sig->cred_guard_mutex){+.+.}: lock_trace fs/proc/base.c:402 [inline] proc_pid_syscall+0xb8/0x2f0 fs/proc/base.c:635 proc_single_show+0xeb/0x170 fs/proc/base.c:755 overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. seq_read+0x4e0/0x11c0 fs/seq_file.c:232 do_loop_readv_writev fs/read_write.c:701 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_read+0x471/0x630 fs/read_write.c:925 vfs_readv+0xe5/0x150 fs/read_write.c:987 do_preadv fs/read_write.c:1071 [inline] __do_sys_preadv fs/read_write.c:1121 [inline] __se_sys_preadv fs/read_write.c:1116 [inline] __x64_sys_preadv+0x22b/0x310 fs/read_write.c:1116 overlayfs: unrecognized mount option "fowner>00000000000000000384" or missing value do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #3 (&p->lock){+.+.}: seq_read+0x6b/0x11c0 fs/seq_file.c:164 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231 do_loop_readv_writev fs/read_write.c:701 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_read+0x471/0x630 fs/read_write.c:925 vfs_readv+0xe5/0x150 fs/read_write.c:987 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x457/0xa00 fs/splice.c:417 do_splice_to+0x10e/0x160 fs/splice.c:881 splice_direct_to_actor+0x2b9/0x8d0 fs/splice.c:959 do_splice_direct+0x1a7/0x270 fs/splice.c:1068 do_sendfile+0x550/0xc30 fs/read_write.c:1447 __do_sys_sendfile64 fs/read_write.c:1508 [inline] __se_sys_sendfile64+0x147/0x160 fs/read_write.c:1494 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #2 (sb_writers#3){.+.+}: sb_start_write include/linux/fs.h:1579 [inline] mnt_want_write+0x3a/0xb0 fs/namespace.c:360 ovl_xattr_set+0x53/0x600 fs/overlayfs/inode.c:338 __vfs_removexattr+0xf3/0x160 fs/xattr.c:413 __vfs_removexattr_locked+0x15c/0x340 fs/xattr.c:445 vfs_removexattr+0xc1/0x240 fs/xattr.c:466 removexattr+0xc8/0x120 fs/xattr.c:760 path_removexattr+0x147/0x160 fs/xattr.c:774 __do_sys_removexattr fs/xattr.c:788 [inline] __se_sys_removexattr fs/xattr.c:785 [inline] __x64_sys_removexattr+0x55/0x80 fs/xattr.c:785 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (&ovl_i_mutex_dir_key[depth]){++++}: inode_lock_shared include/linux/fs.h:758 [inline] lookup_slow fs/namei.c:1688 [inline] lookup_one_len_unlocked+0x111/0x140 fs/namei.c:2573 IPVS: ftp: loaded support on port[0] = 21 ovl_lookup_single+0x60/0x920 fs/overlayfs/namei.c:206 ovl_lookup_layer+0x3bd/0x440 fs/overlayfs/namei.c:292 ovl_lookup+0x729/0x1a00 fs/overlayfs/namei.c:903 __lookup_slow+0x246/0x4a0 fs/namei.c:1672 lookup_slow fs/namei.c:1689 [inline] walk_component+0x7ac/0xda0 fs/namei.c:1811 link_path_walk.part.0+0x901/0x1230 fs/namei.c:2142 link_path_walk fs/namei.c:2073 [inline] path_parentat+0x51/0x140 fs/namei.c:2367 filename_parentat+0x198/0x590 fs/namei.c:2389 do_renameat2+0x193/0xc70 fs/namei.c:4547 __do_sys_rename fs/namei.c:4675 [inline] __se_sys_rename fs/namei.c:4673 [inline] __x64_sys_rename+0x5d/0x80 fs/namei.c:4673 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&ovl_i_mutex_dir_key[depth]#2){++++}: down_read+0x36/0x80 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:758 [inline] do_last fs/namei.c:3326 [inline] path_openat+0x17ec/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_open_execat+0x11d/0x5b0 fs/exec.c:853 __do_execve_file+0x1a8b/0x2360 fs/exec.c:1770 do_execveat_common fs/exec.c:1879 [inline] do_execve+0x35/0x50 fs/exec.c:1896 __do_sys_execve fs/exec.c:1977 [inline] __se_sys_execve fs/exec.c:1972 [inline] __x64_sys_execve+0x7c/0xa0 fs/exec.c:1972 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: &ovl_i_mutex_dir_key[depth]#2 --> &p->lock --> &sig->cred_guard_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sig->cred_guard_mutex); lock(&p->lock); lock(&sig->cred_guard_mutex); lock(&ovl_i_mutex_dir_key[depth]#2); *** DEADLOCK *** 1 lock held by syz-executor.5/25307: #0: 00000000eaa42906 (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds fs/exec.c:1419 [inline] #0: 00000000eaa42906 (&sig->cred_guard_mutex){+.+.}, at: __do_execve_file+0x38c/0x2360 fs/exec.c:1762 stack backtrace: CPU: 0 PID: 25307 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1222 check_prev_add kernel/locking/lockdep.c:1866 [inline] check_prevs_add kernel/locking/lockdep.c:1979 [inline] validate_chain kernel/locking/lockdep.c:2420 [inline] __lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 down_read+0x36/0x80 kernel/locking/rwsem.c:24 inode_lock_shared include/linux/fs.h:758 [inline] do_last fs/namei.c:3326 [inline] path_openat+0x17ec/0x2df0 fs/namei.c:3537 do_filp_open+0x18c/0x3f0 fs/namei.c:3567 do_open_execat+0x11d/0x5b0 fs/exec.c:853 __do_execve_file+0x1a8b/0x2360 fs/exec.c:1770 do_execveat_common fs/exec.c:1879 [inline] do_execve+0x35/0x50 fs/exec.c:1896 __do_sys_execve fs/exec.c:1977 [inline] __se_sys_execve fs/exec.c:1972 [inline] __x64_sys_execve+0x7c/0xa0 fs/exec.c:1972 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f62c4036669 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f62c2989168 EFLAGS: 00000246 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 00007f62c4158050 RCX: 00007f62c4036669 RDX: 0000000020000780 RSI: 00000000200006c0 RDI: 0000000020000380 RBP: 00007f62c4091560 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc4f50ae4f R14: 00007f62c2989300 R15: 0000000000022000 IPVS: ftp: loaded support on port[0] = 21 EXT4-fs (loop1): Unrecognized mount option "î" or missing value IPVS: ftp: loaded support on port[0] = 21 overlayfs: fs on './file0' does not support file handles, falling back to index=off,nfs_export=off. EXT4-fs (loop1): Unrecognized mount option "î" or missing value overlayfs: 'file0' not a directory netlink: 104 bytes leftover after parsing attributes in process `syz-executor.3'. ebtables: ebtables: counters copy to user failed while replacing table IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 ebtables: ebtables: counters copy to user failed while replacing table audit: type=1804 audit(1664158811.519:26635): pid=25593 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir1730583803/syzkaller.zYfYYr/139/bus" dev="sda1" ino=14172 res=1 audit: type=1800 audit(1664158811.519:26636): pid=25593 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="bus" dev="sda1" ino=14172 res=0 ebtables: ebtables: counters copy to user failed while replacing table audit: type=1804 audit(1664158811.569:26637): pid=25593 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir1730583803/syzkaller.zYfYYr/139/bus" dev="sda1" ino=14172 res=1 audit: type=1804 audit(1664158811.689:26638): pid=25628 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir1730583803/syzkaller.zYfYYr/140/bus" dev="sda1" ino=13971 res=1 audit: type=1800 audit(1664158811.699:26639): pid=25628 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="bus" dev="sda1" ino=13971 res=0 audit: type=1804 audit(1664158811.769:26640): pid=25633 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir1730583803/syzkaller.zYfYYr/140/bus" dev="sda1" ino=13971 res=1 audit: type=1804 audit(1664158811.769:26641): pid=25633 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir1730583803/syzkaller.zYfYYr/140/bus" dev="sda1" ino=13971 res=1 audit: type=1804 audit(1664158811.779:26642): pid=25645 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir1730583803/syzkaller.zYfYYr/140/bus" dev="sda1" ino=13971 res=1 IPVS: ftp: loaded support on port[0] = 21 ebtables: ebtables: counters copy to user failed while replacing table audit: type=1804 audit(1664158812.509:26643): pid=25729 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir1730583803/syzkaller.zYfYYr/141/bus" dev="sda1" ino=14434 res=1 ubi0: attaching mtd0 audit: type=1800 audit(1664158812.509:26644): pid=25729 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="bus" dev="sda1" ino=14434 res=0 ubi0: scanning is finished ubi0: attached mtd0 (name "mtdram test device", size 0 MiB) IPVS: ftp: loaded support on port[0] = 21 ubi0: PEB size: 4096 bytes (4 KiB), LEB size: 3968 bytes ipt_REJECT: TCP_RESET invalid for non-tcp ubi0: min./max. I/O unit sizes: 1/64, sub-page size 1 ubi0: VID header offset: 64 (aligned 64), data offset: 128 ubi0: good PEBs: 32, bad PEBs: 0, corrupted PEBs: 0 ubi0: user volume: 0, internal volumes: 1, max. volumes count: 23 ubi0: max/mean erase counter: 1/1, WL threshold: 4096, image sequence number: 3065207257 ubi0: available PEBs: 28, total reserved PEBs: 4, PEBs reserved for bad PEB handling: 0 ubi0: background thread "ubi_bgt0d" started, PID 25858 ptrace attach of "/root/syz-executor.1 exec"[8153] was attempted by "/root/syz-executor.1 exec"[25908] ubi: mtd0 is already attached to ubi0 ubi: mtd0 is already attached to ubi0 ptrace attach of "/root/syz-executor.1 exec"[8153] was attempted by "/root/syz-executor.1 exec"[25954] ptrace attach of "/root/syz-executor.4 exec"[8154] was attempted by "/root/syz-executor.4 exec"[25992] ipt_REJECT: TCP_RESET invalid for non-tcp ipt_REJECT: TCP_RESET invalid for non-tcp ptrace attach of "/root/syz-executor.0 exec"[16363] was attempted by "/root/syz-executor.0 exec"[26007] ipt_REJECT: TCP_RESET invalid for non-tcp ipt_REJECT: TCP_RESET invalid for non-tcp ptrace attach of "/root/syz-executor.4 exec"[8154] was attempted by "/root/syz-executor.4 exec"[26025] overlayfs: unrecognized mount option "smackfsfloor=(" or missing value MTD: Attempt to mount non-MTD device "/dev/loop1" romfs: VFS: Can't find a romfs filesystem on dev loop1. overlayfs: unrecognized mount option "smackfsfloor=(" or missing value ptrace attach of "/root/syz-executor.4 exec"[8154] was attempted by "/root/syz-executor.4 exec"[26079] ptrace attach of "/root/syz-executor.0 exec"[16363] was attempted by "/root/syz-executor.0 exec"[26097] ptrace attach of "/root/syz-executor.4 exec"[8154] was attempted by "/root/syz-executor.4 exec"[26105] MTD: Attempt to mount non-MTD device "/dev/loop1" romfs: VFS: Can't find a romfs filesystem on dev loop1. ptrace attach of "/root/syz-executor.0 exec"[16363] was attempted by "/root/syz-executor.0 exec"[26132] ptrace attach of "/root/syz-executor.4 exec"[8154] was attempted by "/root/syz-executor.4 exec"[26137] MTD: Attempt to mount non-MTD device "/dev/loop1" romfs: VFS: Can't find a romfs filesystem on dev loop1. attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=59, limit=15 loop1: rw=2049, want=35, limit=15 Buffer I/O error on dev loop1, logical block 58, lost async page write Buffer I/O error on dev loop1, logical block 34, lost async page write attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=36, limit=15 Buffer I/O error on dev loop1, logical block 35, lost async page write attempt to access beyond end of device loop1: rw=2049, want=60, limit=15 loop1: rw=2049, want=37, limit=15 Buffer I/O error on dev loop1, logical block 59, lost async page write Buffer I/O error on dev loop1, logical block 36, lost async page write attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=61, limit=15 loop1: rw=2049, want=39, limit=15 Buffer I/O error on dev loop1, logical block 38, lost async page write Buffer I/O error on dev loop1, logical block 60, lost async page write attempt to access beyond end of device loop1: rw=2049, want=40, limit=15 attempt to access beyond end of device Buffer I/O error on dev loop1, logical block 39, lost async page write loop1: rw=2049, want=64, limit=15 attempt to access beyond end of device Buffer I/O error on dev loop1, logical block 63, lost async page write loop1: rw=2049, want=41, limit=15 attempt to access beyond end of device Buffer I/O error on dev loop1, logical block 40, lost async page write loop1: rw=2049, want=67, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=42, limit=15 attempt to access beyond end of device loop1: rw=2049, want=70, limit=15 loop1: rw=2049, want=43, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=44, limit=15 attempt to access beyond end of device loop1: rw=2049, want=45, limit=15 attempt to access beyond end of device loop1: rw=2049, want=47, limit=15 attempt to access beyond end of device loop1: rw=2049, want=48, limit=15 attempt to access beyond end of device loop1: rw=2049, want=49, limit=15 attempt to access beyond end of device loop1: rw=2049, want=71, limit=15 loop1: rw=2049, want=50, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=72, limit=15 loop1: rw=2049, want=51, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=73, limit=15 loop1: rw=2049, want=52, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=75, limit=15 loop1: rw=2049, want=53, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=54, limit=15 attempt to access beyond end of device loop1: rw=2049, want=62, limit=15 attempt to access beyond end of device loop1: rw=2049, want=63, limit=15 attempt to access beyond end of device loop1: rw=2049, want=65, limit=15 attempt to access beyond end of device loop1: rw=2049, want=66, limit=15 attempt to access beyond end of device loop1: rw=2049, want=68, limit=15 attempt to access beyond end of device loop1: rw=2049, want=69, limit=15 attempt to access beyond end of device loop1: rw=2049, want=77, limit=15 loop1: rw=2049, want=74, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=80, limit=15 loop1: rw=2049, want=76, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=82, limit=15 loop1: rw=2049, want=78, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=85, limit=15 loop1: rw=2049, want=79, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=86, limit=15 loop1: rw=2049, want=81, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=83, limit=15 attempt to access beyond end of device loop1: rw=2049, want=84, limit=15 attempt to access beyond end of device loop1: rw=2049, want=88, limit=15 attempt to access beyond end of device loop1: rw=2049, want=90, limit=15 attempt to access beyond end of device loop1: rw=2049, want=91, limit=15 attempt to access beyond end of device loop1: rw=2049, want=92, limit=15 attempt to access beyond end of device loop1: rw=2049, want=94, limit=15 attempt to access beyond end of device loop1: rw=2049, want=95, limit=15 attempt to access beyond end of device loop1: rw=2049, want=96, limit=15 attempt to access beyond end of device loop1: rw=2049, want=87, limit=15 loop1: rw=2049, want=97, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=89, limit=15 loop1: rw=2049, want=98, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=93, limit=15 loop1: rw=2049, want=100, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=99, limit=15 loop1: rw=2049, want=101, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=102, limit=15 loop1: rw=2049, want=103, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=106, limit=15 loop1: rw=2049, want=104, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=107, limit=15 loop1: rw=2049, want=105, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=111, limit=15 loop1: rw=2049, want=108, limit=15 attempt to access beyond end of device attempt to access beyond end of device loop1: rw=2049, want=119, limit=15 loop1: rw=2049, want=109, limit=15 attempt to access beyond end of device loop1: rw=2049, want=110, limit=15 attempt to access beyond end of device loop1: rw=2049, want=112, limit=15 attempt to access beyond end of device loop1: rw=2049, want=113, limit=15 attempt to access beyond end of device loop1: rw=2049, want=114, limit=15 attempt to access beyond end of device loop1: rw=2049, want=115, limit=15 attempt to access beyond end of device loop1: rw=2049, want=116, limit=15 attempt to access beyond end of device loop1: rw=2049, want=117, limit=15 attempt to access beyond end of device loop1: rw=2049, want=118, limit=15 attempt to access beyond end of device loop1: rw=2049, want=120, limit=15 attempt to access beyond end of device loop1: rw=2049, want=121, limit=15 attempt to access beyond end of device loop1: rw=2049, want=122, limit=15 attempt to access beyond end of device loop1: rw=2049, want=123, limit=15 attempt to access beyond end of device loop1: rw=2049, want=125, limit=15 attempt to access beyond end of device loop1: rw=2049, want=126, limit=15 attempt to access beyond end of device loop1: rw=2049, want=127, limit=15 attempt to access beyond end of device loop1: rw=2049, want=128, limit=15 attempt to access beyond end of device loop1: rw=1, want=32, limit=15 attempt to access beyond end of device loop1: rw=1, want=33, limit=15 attempt to access beyond end of device loop1: rw=1, want=34, limit=15 attempt to access beyond end of device loop1: rw=1, want=38, limit=15 attempt to access beyond end of device loop1: rw=1, want=46, limit=15 attempt to access beyond end of device loop1: rw=1, want=55, limit=15 attempt to access beyond end of device loop1: rw=1, want=56, limit=15 attempt to access beyond end of device loop1: rw=1, want=57, limit=15 attempt to access beyond end of device loop1: rw=1, want=58, limit=15 attempt to access beyond end of device loop1: rw=2049, want=128, limit=15 attempt to access beyond end of device loop1: rw=1, want=40, limit=15 __report_access: 51 callbacks suppressed ptrace attach of "/root/syz-executor.2 exec"[14581] was attempted by "/root/syz-executor.2 exec"[26514] ptrace attach of "/root/syz-executor.4 exec"[8154] was attempted by "/root/syz-executor.4 exec"[26513] ptrace attach of "/root/syz-executor.4 exec"[8154] was attempted by "/root/syz-executor.4 exec"[26533] ptrace attach of "/root/syz-executor.2 exec"[14581] was attempted by "/root/syz-executor.2 exec"[26540]