BUG: MAX_LOCKDEP_CHAINS too low! turning off the locking correctness validator. CPU: 1 PID: 14812 Comm: syz-executor.1 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 add_chain_cache kernel/locking/lockdep.c:2259 [inline] lookup_chain_cache_add kernel/locking/lockdep.c:2371 [inline] validate_chain kernel/locking/lockdep.c:2391 [inline] __lock_acquire.cold+0x420/0x57e kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] __anon_vma_prepare+0xc2/0x560 mm/rmap.c:198 anon_vma_prepare include/linux/rmap.h:154 [inline] do_cow_fault mm/memory.c:3831 [inline] do_fault mm/memory.c:3946 [inline] handle_pte_fault mm/memory.c:4175 [inline] __handle_mm_fault+0x32c1/0x41c0 mm/memory.c:4299 handle_mm_fault+0x436/0xb10 mm/memory.c:4336 faultin_page mm/gup.c:539 [inline] __get_user_pages+0x6f0/0x1710 mm/gup.c:745 __get_user_pages_locked mm/gup.c:916 [inline] get_user_pages_remote+0x220/0x460 mm/gup.c:1108 uprobe_write_opcode+0xfb/0x1720 kernel/events/uprobes.c:311 install_breakpoint.part.0+0x7b/0x100 kernel/events/uprobes.c:666 install_breakpoint kernel/events/uprobes.c:655 [inline] uprobe_mmap+0x665/0xbe0 kernel/events/uprobes.c:1096 __vma_adjust+0x5cd/0x17f0 mm/mmap.c:894 vma_adjust include/linux/mm.h:2256 [inline] __split_vma+0x2bd/0x560 mm/mmap.c:2653 do_munmap+0x2f0/0xde0 mm/mmap.c:2733 mmap_region+0x2a3/0x16b0 mm/mmap.c:1700 do_mmap+0x8e8/0x1080 mm/mmap.c:1530 do_mmap_pgoff include/linux/mm.h:2329 [inline] vm_mmap_pgoff+0x197/0x200 mm/util.c:357 ksys_mmap_pgoff+0x45f/0x5a0 mm/mmap.c:1580 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f44b8d5a0f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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:00007f44b72cc168 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f44b8e79f80 RCX: 00007f44b8d5a0f9 RDX: 0000000000000000 RSI: 0000000000004000 RDI: 0000000020004000 RBP: 00007f44b8db5ae9 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000000032 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffec9449a5f R14: 00007f44b72cc300 R15: 0000000000022000 can: request_module (can-proto-0) failed. can: request_module (can-proto-0) failed. overlayfs: missing 'lowerdir' netlink: 28 bytes leftover after parsing attributes in process `syz-executor.2'. device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready netlink: 28 bytes leftover after parsing attributes in process `syz-executor.2'. device wlan1 left promiscuous mode device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 left promiscuous mode netlink: 28 bytes leftover after parsing attributes in process `syz-executor.2'. device wlan1 left promiscuous mode device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 left promiscuous mode device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 left promiscuous mode device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 left promiscuous mode device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 left promiscuous mode device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 left promiscuous mode device wlan1 left promiscuous mode kauditd_printk_skb: 13 callbacks suppressed audit: type=1804 audit(1678046591.005:1177): pid=15365 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir1748907758/syzkaller.J4Efvg/818/bus" dev="sda1" ino=14181 res=1 audit: type=1804 audit(1678046591.045:1178): pid=15365 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir1748907758/syzkaller.J4Efvg/818/bus" dev="sda1" ino=14181 res=1 device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready audit: type=1804 audit(1678046591.115:1179): pid=15370 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir1748907758/syzkaller.J4Efvg/818/bus" dev="sda1" ino=14181 res=1 device wlan1 left promiscuous mode audit: type=1804 audit(1678046591.815:1180): pid=15406 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir1748907758/syzkaller.J4Efvg/819/bus" dev="sda1" ino=14082 res=1 audit: type=1804 audit(1678046591.845:1181): pid=15408 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir1748907758/syzkaller.J4Efvg/819/bus" dev="sda1" ino=14082 res=1 device wlan1 left promiscuous mode device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 left promiscuous mode audit: type=1804 audit(1678046592.685:1182): pid=15430 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir1748907758/syzkaller.J4Efvg/820/bus" dev="sda1" ino=14811 res=1 audit: type=1804 audit(1678046592.715:1183): pid=15430 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir1748907758/syzkaller.J4Efvg/820/bus" dev="sda1" ino=14811 res=1 device wlan1 left promiscuous mode audit: type=1804 audit(1678046592.725:1184): pid=15446 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir1748907758/syzkaller.J4Efvg/820/bus" dev="sda1" ino=14811 res=1 audit: type=1804 audit(1678046592.735:1185): pid=15446 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir1748907758/syzkaller.J4Efvg/820/bus" dev="sda1" ino=14811 res=1 device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready audit: type=1804 audit(1678046592.735:1186): pid=15446 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.2" name="/root/syzkaller-testdir1748907758/syzkaller.J4Efvg/820/bus" dev="sda1" ino=14811 res=1 device wlan1 left promiscuous mode device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready vxfs: WRONG superblock magic 00000000 at 1 vxfs: WRONG superblock magic 00398ba0 at 8 vxfs: can't find superblock. device wlan1 entered promiscuous mode vxfs: WRONG superblock magic 00000000 at 1 IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready vxfs: WRONG superblock magic 00000001 at 8 device wlan1 left promiscuous mode vxfs: can't find superblock. vxfs: WRONG superblock magic 00000000 at 1 vxfs: WRONG superblock magic c6cb15a0 at 8 vxfs: can't find superblock. vxfs: WRONG superblock magic 00000000 at 1 vxfs: WRONG superblock magic c6cb15a0 at 8 vxfs: can't find superblock. device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready vxfs: WRONG superblock magic 00000000 at 1 vxfs: WRONG superblock magic 32323a49 at 8 vxfs: can't find superblock. vxfs: WRONG superblock magic 00000000 at 1 vxfs: WRONG superblock magic 00000000 at 8 vxfs: can't find superblock. vxfs: WRONG superblock magic 00000000 at 1 vxfs: WRONG superblock magic 00000004 at 8 vxfs: can't find superblock. vxfs: WRONG superblock magic 00000000 at 1 vxfs: WRONG superblock magic 00000000 at 8 vxfs: can't find superblock. vxfs: WRONG superblock magic 00000000 at 1 vxfs: WRONG superblock magic d6393000 at 8 vxfs: can't find superblock. device wlan1 left promiscuous mode device wlan1 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready device wlan1 left promiscuous mode FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 16030 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0xf lib/fault-inject.c:149 __should_failslab+0x115/0x180 mm/failslab.c:32 should_failslab+0x5/0x10 mm/slab_common.c:1590 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] __do_kmalloc mm/slab.c:3725 [inline] __kmalloc_track_caller+0x2a6/0x3c0 mm/slab.c:3742 memdup_user+0x22/0xb0 mm/util.c:160 strndup_user+0x70/0x120 mm/util.c:217 copy_mount_string fs/namespace.c:2726 [inline] ksys_mount+0x34/0x130 fs/namespace.c:3023 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f5792d220f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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:00007f5791294168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f5792e41f80 RCX: 00007f5792d220f9 RDX: 0000000020000140 RSI: 0000000020000000 RDI: 00000000200000c0 RBP: 00007f57912941d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd8b94f75f R14: 00007f5791294300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 16060 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0xf lib/fault-inject.c:149 __should_failslab+0x115/0x180 mm/failslab.c:32 should_failslab+0x5/0x10 mm/slab_common.c:1590 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] __do_kmalloc mm/slab.c:3725 [inline] __kmalloc_track_caller+0x2a6/0x3c0 mm/slab.c:3742 memdup_user+0x22/0xb0 mm/util.c:160 strndup_user+0x70/0x120 mm/util.c:217 copy_mount_string fs/namespace.c:2726 [inline] ksys_mount+0x6f/0x130 fs/namespace.c:3028 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f5792d220f9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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:00007f5791294168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f5792e41f80 RCX: 00007f5792d220f9 RDX: 0000000020000140 RSI: 0000000020000000 RDI: 00000000200000c0 RBP: 00007f57912941d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffd8b94f75f R14: 00007f5791294300 R15: 0000000000022000