__dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149 should_failslab+0xd6/0x130 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:421 [inline] slab_alloc mm/slab.c:3376 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x2c1/0x400 mm/slab.c:3729 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 12061 at fs/super.c:1163 kill_block_super+0xbe/0xe0 fs/super.c:1163 kmalloc include/linux/slab.h:493 [inline] kzalloc include/linux/slab.h:661 [inline] register_shrinker+0x1ab/0x220 mm/vmscan.c:284 Kernel panic - not syncing: panic_on_warn set ... sget_userns+0x9aa/0xc10 fs/super.c:535 sget+0xd1/0x110 fs/super.c:572 mount_bdev+0xcd/0x360 fs/super.c:1107 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2572 [inline] do_mount+0xe65/0x2a30 fs/namespace.c:2905 SYSC_mount fs/namespace.c:3121 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3098 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7fa625adb60a RSP: 002b:00007fa62404bf88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000228 RCX: 00007fa625adb60a RDX: 0000000020000240 RSI: 0000000020000280 RDI: 00007fa62404bfe0 RBP: 00007fa62404c020 R08: 00007fa62404c020 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000240 R13: 0000000020000280 R14: 00007fa62404bfe0 R15: 00000000200002c0 CPU: 1 PID: 12061 Comm: syz-executor.1 Not tainted 4.14.301-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 panic+0x1f9/0x42d kernel/panic.c:183 __warn.cold+0x20/0x44 kernel/panic.c:547 report_bug+0x208/0x250 lib/bug.c:183 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:967 RIP: 0010:kill_block_super+0xbe/0xe0 fs/super.c:1163 RSP: 0018:ffff8880b3df7bc8 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc900060e0000 RDX: 0000000000040000 RSI: ffffffff818779fe RDI: ffff8880b1dd0b70 RBP: ffff8880997106c0 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: ffff88805b0e4100 R12: ffff8880b1dd06c0 R13: ffffffff890a6330 R14: ffffffff88f45bc0 R15: dffffc0000000000 deactivate_locked_super+0x6c/0xd0 fs/super.c:319 sget_userns+0x9c4/0xc10 fs/super.c:537 sget+0xd1/0x110 fs/super.c:572 mount_bdev+0xcd/0x360 fs/super.c:1107 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2572 [inline] do_mount+0xe65/0x2a30 fs/namespace.c:2905 SYSC_mount fs/namespace.c:3121 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3098 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 ------------[ cut here ]------------ RIP: 0033:0x7f9bf9d3e60a RSP: 002b:00007f9bf82aef88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 WARNING: CPU: 0 PID: 12054 at fs/block_dev.c:1838 blkdev_put+0x42a/0x4c0 fs/block_dev.c:1838 RAX: ffffffffffffffda RBX: 0000000000000178 RCX: 00007f9bf9d3e60a Modules linked in: RDX: 0000000020000180 RSI: 00000000200001c0 RDI: 00007f9bf82aefe0 CPU: 0 PID: 12054 Comm: syz-executor.4 Not tainted 4.14.301-syzkaller #0 RBP: 00007f9bf82af020 R08: 00007f9bf82af020 R09: 0000000000000000 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000180 task: ffff88808ed64440 task.stack: ffff88808d968000 R13: 00000000200001c0 R14: 00007f9bf82aefe0 R15: 0000000020000200 RIP: 0010:blkdev_put+0x42a/0x4c0 fs/block_dev.c:1838 RSP: 0018:ffff88808d96fc88 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc900084f2000 RDX: 0000000000040000 RSI: ffffffff81942b2a RDI: ffffffff88e12744 RBP: ffff8880902f8240 R08: ffffffff8b9b3ac0 R09: 000000000004018b R10: ffff88808ed64cf0 R11: ffff88808ed64440 R12: 0000000000000083 R13: ffff8880902f8258 R14: ffff8880902f82e8 R15: ffff8880902f8358 FS: 00007fa62404c700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f95ec65c9a0 CR3: 0000000097bc5000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mount_bdev+0x1e5/0x360 fs/super.c:1149 mount_fs+0x92/0x2a0 fs/super.c:1237 vfs_kern_mount.part.0+0x5b/0x470 fs/namespace.c:1046 vfs_kern_mount fs/namespace.c:1036 [inline] do_new_mount fs/namespace.c:2572 [inline] do_mount+0xe65/0x2a30 fs/namespace.c:2905 SYSC_mount fs/namespace.c:3121 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3098 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 RIP: 0033:0x7fa625adb60a RSP: 002b:00007fa62404bf88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000000000228 RCX: 00007fa625adb60a RDX: 0000000020000240 RSI: 0000000020000280 RDI: 00007fa62404bfe0 RBP: 00007fa62404c020 R08: 00007fa62404c020 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000240 R13: 0000000020000280 R14: 00007fa62404bfe0 R15: 00000000200002c0 Code: ff ff 4c 89 f7 e8 c7 ef ea ff e9 bb fc ff ff e8 bd ef ea ff e9 14 fd ff ff 4c 89 f7 e8 b0 ef ea ff e9 3a fd ff ff e8 16 2f c1 ff <0f> 0b e9 a5 fc ff ff e8 0a 2f c1 ff 0f 0b e9 fc fc ff ff e8 fe ---[ end trace 588bf8e4c4b1445a ]--- Kernel Offset: disabled Rebooting in 86400 seconds..