./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1376037438 <...> forked to background, child pid 4646 [ 38.528460][ T4647] 8021q: adding VLAN 0 to HW filter on device bond0 [ 38.537971][ T4647] eql: remember to turn off Van-Jacobson compression on your slave devices [ 38.806725][ T4735] ssh-keygen (4735) used greatest stack depth: 18816 bytes left Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.165' (ECDSA) to the list of known hosts. execve("./syz-executor1376037438", ["./syz-executor1376037438"], 0x7ffd23e66650 /* 10 vars */) = 0 brk(NULL) = 0x555555df4000 brk(0x555555df4c40) = 0x555555df4c40 arch_prctl(ARCH_SET_FS, 0x555555df4300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1376037438", 4096) = 28 brk(0x555555e15c40) = 0x555555e15c40 brk(0x555555e16000) = 0x555555e16000 mprotect(0x7f650fc34000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 getpid() = 5071 openat(AT_FDCWD, "/sys/kernel/debug/x86/nmi_longest_ns", O_WRONLY|O_CLOEXEC) = 3 write(3, "10000000000", 11) = 11 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/hung_task_check_interval_secs", O_WRONLY|O_CLOEXEC) = 3 write(3, "20", 2) = 2 close(3) = 0 openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_kallsyms", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/net/core/bpf_jit_harden", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/kptr_restrict", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/softlockup_all_cpu_backtrace", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/fs/mount-max", O_WRONLY|O_CLOEXEC) = 3 write(3, "100", 3) = 3 close(3) = 0 openat(AT_FDCWD, "/proc/sys/vm/oom_dump_tasks", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/debug/exception-trace", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/printk", O_WRONLY|O_CLOEXEC) = 3 write(3, "7 4 1 3", 7) = 7 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/keys/gc_delay", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/vm/oom_kill_allocating_task", O_WRONLY|O_CLOEXEC) = 3 write(3, "1", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/ctrl-alt-del", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/proc/sys/kernel/cad_pid", O_WRONLY|O_CLOEXEC) = 3 write(3, "5071", 4) = 4 close(3) = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555df45d0) = 5072 ./strace-static-x86_64: Process 5072 attached [pid 5072] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5072] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5072] setsid() = 1 [pid 5072] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5072] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5072] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5072] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5072] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5072] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5072] unshare(CLONE_NEWNS) = 0 [pid 5072] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5072] unshare(CLONE_NEWIPC) = 0 [pid 5072] unshare(CLONE_NEWCGROUP) = 0 [pid 5072] unshare(CLONE_NEWUTS) = 0 [pid 5072] unshare(CLONE_SYSVSEM) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "16777216", 8) = 8 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "536870912", 9) = 9 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1024", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "8192", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1024", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1024", 4) = 4 [pid 5072] close(3) = 0 [pid 5072] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5072] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5072] close(3) = 0 [pid 5072] getpid() = 1 [pid 5072] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 69.261518][ T5072] dump_stack_lvl+0x1e7/0x2d0 [ 69.266224][ T5072] ? irq_work_queue+0xd1/0x150 [ 69.271008][ T5072] ? nf_tcp_handle_invalid+0x650/0x650 [ 69.276495][ T5072] ? panic+0x770/0x770 [ 69.280677][ T5072] ? _printk+0xd5/0x120 [ 69.284845][ T5072] print_report+0x163/0x540 [ 69.289371][ T5072] ? trace_contention_end+0x3c/0xf0 [ 69.294594][ T5072] ? __virt_addr_valid+0x22f/0x2e0 [ 69.299711][ T5072] ? __phys_addr+0xba/0x170 [ 69.304252][ T5072] ? reiserfs_get_unused_objectid+0x231/0x490 [ 69.310332][ T5072] kasan_report+0x176/0x1b0 [ 69.314874][ T5072] ? reiserfs_get_unused_objectid+0x231/0x490 [ 69.320974][ T5072] kasan_check_range+0x283/0x290 [ 69.325917][ T5072] ? reiserfs_get_unused_objectid+0x231/0x490 [ 69.332003][ T5072] __asan_memmove+0x29/0x70 [ 69.336550][ T5072] reiserfs_get_unused_objectid+0x231/0x490 [ 69.342459][ T5072] reiserfs_new_inode+0x2bc/0x1da0 [ 69.347674][ T5072] ? __mutex_trylock_common+0x182/0x2e0 [ 69.353318][ T5072] ? reiserfs_write_inode+0x2e0/0x2e0 [ 69.358718][ T5072] ? do_journal_begin_r+0xdcd/0x1020 [ 69.364035][ T5072] ? smack_inode_init_security+0x420/0x4a0 [ 69.369874][ T5072] ? journal_begin+0x1f3/0x360 [ 69.374670][ T5072] reiserfs_mkdir+0x5b0/0x8f0 [ 69.379356][ T5072] ? reiserfs_symlink+0x720/0x720 [ 69.384384][ T5072] ? __down_write_common+0x161/0x200 [ 69.389701][ T5072] ? __up_read+0x690/0x690 [ 69.394155][ T5072] reiserfs_xattr_init+0x34c/0x730 [ 69.399285][ T5072] reiserfs_fill_super+0x2207/0x2620 [ 69.404600][ T5072] ? reiserfs_kill_sb+0x150/0x150 [ 69.409632][ T5072] ? snprintf+0xda/0x120 [ 69.413925][ T5072] ? sb_set_blocksize+0x99/0x100 [ 69.418876][ T5072] mount_bdev+0x271/0x3a0 [ 69.423230][ T5072] ? reiserfs_kill_sb+0x150/0x150 [ 69.428273][ T5072] legacy_get_tree+0xef/0x190 [ 69.433032][ T5072] ? remove_save_link+0x540/0x540 [ 69.438101][ T5072] vfs_get_tree+0x8c/0x270 [ 69.442538][ T5072] do_new_mount+0x28f/0xae0 [ 69.447054][ T5072] ? path_mount+0x5f2/0xf80 [ 69.451748][ T5072] ? do_move_mount_old+0x170/0x170 [ 69.456863][ T5072] ? user_path_at_empty+0x12f/0x180 [ 69.462064][ T5072] __se_sys_mount+0x2d9/0x3c0 [ 69.466759][ T5072] ? __x64_sys_mount+0xc0/0xc0 [ 69.471550][ T5072] ? syscall_enter_from_user_mode+0x32/0x260 [ 69.477550][ T5072] ? __x64_sys_mount+0x20/0xc0 [ 69.482336][ T5072] do_syscall_64+0x41/0xc0 [ 69.486767][ T5072] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 69.492682][ T5072] RIP: 0033:0x7f650fbcb3aa [ 69.497126][ T5072] Code: 48 c7 c2 c0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 f8 03 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 69.516736][ T5072] RSP: 002b:00007ffc35632868 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 69.525269][ T5072] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f650fbcb3aa [ 69.533263][ T5072] RDX: 0000000020000080 RSI: 0000000020000040 RDI: 00007ffc35632880 [ 69.541244][ T5072] RBP: 00007ffc35632880 R08: 00007ffc356328c0 R09: 0000000000001132 [ 69.549216][ T5072] R10: 0000000000008008 R11: 0000000000000286 R12: 0000000000000004 [ 69.557188][ T5072] R13: 0000555555df42c0 R14: 0000000000008008 R15: 00007ffc356328c0 [ 69.565173][ T5072] [ 69.568193][ T5072] [ 69.570524][ T5072] The buggy address belongs to the physical page: [ 69.576969][ T5072] page:ffffea0001cf1ac0 refcount:3 mapcount:0 mapping:ffff888144c549f8 index:0x10 pfn:0x73c6b [ 69.587225][ T5072] memcg:ffff888140196000 [ 69.591471][ T5072] aops:def_blk_aops ino:700000 [ 69.596330][ T5072] flags: 0xfff00000002022(referenced|active|private|node=0|zone=1|lastcpupid=0x7ff) [ 69.605724][ T5072] raw: 00fff00000002022 0000000000000000 dead000000000122 ffff888144c549f8 [ 69.614337][ T5072] raw: 0000000000000010 ffff8880751fc910 00000003ffffffff ffff888140196000 [ 69.622918][ T5072] page dumped because: kasan: bad access detected [ 69.629324][ T5072] page_owner tracks the page as allocated [ 69.635037][ T5072] page last allocated via order 0, migratetype Movable, gfp_mask 0x148c48(GFP_NOFS|__GFP_NOFAIL|__GFP_COMP|__GFP_HARDWALL|__GFP_MOVABLE), pid 5072, tgid 5072 (syz-executor137), ts 69127009678, free_ts 60810646673 [ 69.655621][ T5072] get_page_from_freelist+0x3246/0x33c0 [ 69.661193][ T5072] __alloc_pages+0x255/0x670 [ 69.665786][ T5072] folio_alloc+0x1e/0x60 [ 69.670029][ T5072] filemap_alloc_folio+0xde/0x500 [ 69.675051][ T5072] __filemap_get_folio+0x719/0xe50 [ 69.680175][ T5072] pagecache_get_page+0x2c/0x240 [ 69.685124][ T5072] __getblk_gfp+0x215/0xa40 [ 69.689630][ T5072] __bread_gfp+0x2e/0x380 [ 69.693965][ T5072] read_super_block+0x91/0x800 [ 69.698745][ T5072] reiserfs_fill_super+0x912/0x2620 [ 69.703959][ T5072] mount_bdev+0x271/0x3a0 [ 69.708291][ T5072] legacy_get_tree+0xef/0x190 [ 69.712994][ T5072] vfs_get_tree+0x8c/0x270 [ 69.717428][ T5072] do_new_mount+0x28f/0xae0 [ 69.721928][ T5072] __se_sys_mount+0x2d9/0x3c0 [ 69.726604][ T5072] do_syscall_64+0x41/0xc0 [ 69.731038][ T5072] page last free stack trace: [ 69.735727][ T5072] free_unref_page_prepare+0xe2f/0xe70 [ 69.741204][ T5072] free_unref_page_list+0x596/0x830 [ 69.746401][ T5072] release_pages+0x219e/0x2470 [ 69.751164][ T5072] tlb_flush_mmu+0x100/0x210 [ 69.755761][ T5072] tlb_finish_mmu+0xd4/0x1f0 [ 69.760352][ T5072] exit_mmap+0x2c9/0x850 [ 69.764591][ T5072] __mmput+0x115/0x3c0 [ 69.768658][ T5072] exit_mm+0x227/0x310 [ 69.772739][ T5072] do_exit+0x612/0x2290 [ 69.776907][ T5072] do_group_exit+0x206/0x2c0 [ 69.781586][ T5072] __x64_sys_exit_group+0x3f/0x40 [ 69.786623][ T5072] do_syscall_64+0x41/0xc0 [ 69.791050][ T5072] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 69.796946][ T5072] [ 69.799259][ T5072] Memory state around the buggy address: [ 69.804889][ T5072] ffff888073c6bf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 69.812989][ T5072] ffff888073c6bf80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 69.821666][ T5072] >ffff888073c6c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 69.829728][ T5072] ^ [ 69.833798][ T5072] ffff888073c6c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 69.844737][ T5072] ffff888073c6c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 69.852834][ T5072] ================================================================== [ 69.865447][ T5072] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 69.872681][ T5072] CPU: 0 PID: 5072 Comm: syz-executor137 Not tainted 6.3.0-rc3-syzkaller-00031-g1e760fa3596e #0 [ 69.883113][ T5072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 69.893166][ T5072] Call Trace: [ 69.896442][ T5072] [ 69.899371][ T5072] dump_stack_lvl+0x1e7/0x2d0 [ 69.904057][ T5072] ? nf_tcp_handle_invalid+0x650/0x650 [ 69.909533][ T5072] ? panic+0x770/0x770 [ 69.913716][ T5072] ? preempt_schedule_common+0x83/0xc0 [ 69.919204][ T5072] ? vscnprintf+0x5d/0x80 [ 69.923541][ T5072] panic+0x31c/0x770 [ 69.927436][ T5072] ? check_panic_on_warn+0x21/0xa0 [ 69.932551][ T5072] ? memcpy_page_flushcache+0x100/0x100 [ 69.938098][ T5072] ? _raw_spin_unlock_irqrestore+0x12c/0x140 [ 69.944081][ T5072] ? _raw_spin_unlock+0x40/0x40 [ 69.948933][ T5072] ? print_report+0x4fb/0x540 [ 69.953613][ T5072] check_panic_on_warn+0x82/0xa0 [ 69.958638][ T5072] ? reiserfs_get_unused_objectid+0x231/0x490 [ 69.964724][ T5072] end_report+0x63/0x110 [ 69.968966][ T5072] kasan_report+0x183/0x1b0 [ 69.973490][ T5072] ? reiserfs_get_unused_objectid+0x231/0x490 [ 69.979573][ T5072] kasan_check_range+0x283/0x290 [ 69.984528][ T5072] ? reiserfs_get_unused_objectid+0x231/0x490 [ 69.990610][ T5072] __asan_memmove+0x29/0x70 [ 69.995126][ T5072] reiserfs_get_unused_objectid+0x231/0x490 [ 70.001039][ T5072] reiserfs_new_inode+0x2bc/0x1da0 [ 70.006175][ T5072] ? __mutex_trylock_common+0x182/0x2e0 [ 70.011743][ T5072] ? reiserfs_write_inode+0x2e0/0x2e0 [ 70.017131][ T5072] ? do_journal_begin_r+0xdcd/0x1020 [ 70.022437][ T5072] ? smack_inode_init_security+0x420/0x4a0 [ 70.028260][ T5072] ? journal_begin+0x1f3/0x360 [ 70.033031][ T5072] reiserfs_mkdir+0x5b0/0x8f0 [ 70.037715][ T5072] ? reiserfs_symlink+0x720/0x720 [ 70.042740][ T5072] ? __down_write_common+0x161/0x200 [ 70.048056][ T5072] ? __up_read+0x690/0x690 [ 70.052544][ T5072] reiserfs_xattr_init+0x34c/0x730 [ 70.057756][ T5072] reiserfs_fill_super+0x2207/0x2620 [ 70.063059][ T5072] ? reiserfs_kill_sb+0x150/0x150 [ 70.068162][ T5072] ? snprintf+0xda/0x120 [ 70.072415][ T5072] ? sb_set_blocksize+0x99/0x100 [ 70.077359][ T5072] mount_bdev+0x271/0x3a0 [ 70.081711][ T5072] ? reiserfs_kill_sb+0x150/0x150 [ 70.086749][ T5072] legacy_get_tree+0xef/0x190 [ 70.091435][ T5072] ? remove_save_link+0x540/0x540 [ 70.096464][ T5072] vfs_get_tree+0x8c/0x270 [ 70.100883][ T5072] do_new_mount+0x28f/0xae0 [ 70.105492][ T5072] ? path_mount+0x5f2/0xf80 [ 70.110009][ T5072] ? do_move_mount_old+0x170/0x170 [ 70.115127][ T5072] ? user_path_at_empty+0x12f/0x180 [ 70.120328][ T5072] __se_sys_mount+0x2d9/0x3c0 [ 70.125008][ T5072] ? __x64_sys_mount+0xc0/0xc0 [ 70.129806][ T5072] ? syscall_enter_from_user_mode+0x32/0x260 [ 70.135819][ T5072] ? __x64_sys_mount+0x20/0xc0 [ 70.140614][ T5072] do_syscall_64+0x41/0xc0 [ 70.145155][ T5072] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 70.151060][ T5072] RIP: 0033:0x7f650fbcb3aa [ 70.155491][ T5072] Code: 48 c7 c2 c0 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 f8 03 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 70.175103][ T5072] RSP: 002b:00007ffc35632868 EFLAGS: 00000286 ORIG_RAX: 00000000000000a5 [ 70.183537][ T5072] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f650fbcb3aa [ 70.191538][ T5072] RDX: 0000000020000080 RSI: 0000000020000040 RDI: 00007ffc35632880 [ 70.199517][ T5072] RBP: 00007ffc35632880 R08: 00007ffc356328c0 R09: 0000000000001132 [ 70.207597][ T5072] R10: 0000000000008008 R11: 0000000000000286 R12: 0000000000000004 [ 70.215597][ T5072] R13: 0000555555df42c0 R14: 0000000000008008 R15: 00007ffc356328c0 [ 70.223580][ T5072] [ 70.226916][ T5072] Kernel Offset: disabled [ 70.231246][ T5072] Rebooting in 86400 seconds..