Title | Replies (including bot) | Last reply |
---|---|---|
WARNING: refcount bug in put_pid_ns | 1 (2) | 2018/04/21 10:41 |
WARNING in kill_block_super | 7 (8) | 2018/04/11 10:09 |
WARNING: refcount bug in put_pid_ns | 0 (1) | 2018/03/31 20:47 |
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Title | Replies (including bot) | Last reply |
---|---|---|
WARNING: refcount bug in put_pid_ns | 1 (2) | 2018/04/21 10:41 |
WARNING in kill_block_super | 7 (8) | 2018/04/11 10:09 |
WARNING: refcount bug in put_pid_ns | 0 (1) | 2018/03/31 20:47 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-4.14 | WARNING: refcount bug in put_pid_ns | C | error | 39 | 1600d | 1999d | 0/1 | upstream: reported C repro on 2019/04/18 07:22 |
mount_ns+0xc4/0x190 fs/super.c:1036 proc_mount+0x7a/0x90 fs/proc/root.c:101 refcount_t: underflow; use-after-free. mount_fs+0x66/0x2d0 fs/super.c:1222 vfs_kern_mount.part.26+0xc6/0x4a0 fs/namespace.c:1037 WARNING: CPU: 0 PID: 4482 at lib/refcount.c:187 refcount_sub_and_test+0x167/0x1b0 lib/refcount.c:187 Kernel panic - not syncing: panic_on_warn set ... vfs_kern_mount fs/namespace.c:3292 [inline] kern_mount_data+0x50/0xb0 fs/namespace.c:3292 pid_ns_prepare_proc+0x1e/0x80 fs/proc/root.c:222 alloc_pid+0x87e/0xa00 kernel/pid.c:208 copy_process.part.38+0x2516/0x4bd0 kernel/fork.c:1807 copy_process kernel/fork.c:1606 [inline] _do_fork+0x1f7/0xf70 kernel/fork.c:2087 SYSC_clone kernel/fork.c:2194 [inline] SyS_clone+0x37/0x50 kernel/fork.c:2188 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x454e79 RSP: 002b:00007fac6a5c2c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fac6a5c36d4 RCX: 0000000000454e79 RDX: 00000000200008c0 RSI: 0000000020000800 RDI: 000000002000c100 RBP: 000000000072bea0 R08: 0000000020000940 R09: 0000000000000000 R10: 0000000020000900 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000051 R14: 00000000006f2838 R15: 0000000000000028 CPU: 0 PID: 4482 Comm: syz-executor7 Not tainted 4.16.0-rc7+ #373 proc_fill_super: allocate dentry failed Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x24d lib/dump_stack.c:53 IPVS: ftp: loaded support on port[0] = 21 panic+0x1e4/0x41c kernel/panic.c:183 __warn+0x1dc/0x200 kernel/panic.c:547 report_bug+0x1f4/0x2b0 lib/bug.c:186 fixup_bug.part.10+0x37/0x80 arch/x86/kernel/traps.c:178 fixup_bug arch/x86/kernel/traps.c:247 [inline] do_error_trap+0x2d7/0x3e0 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:315 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:986 RIP: 0010:refcount_sub_and_test+0x167/0x1b0 lib/refcount.c:187 RSP: 0018:ffff8801b9d9f318 EFLAGS: 00010282 RAX: dffffc0000000008 RBX: 0000000000000000 RCX: ffffffff815b193e RDX: 0000000000000000 RSI: 1ffff100373b3e13 RDI: 1ffff100373b3de8 RBP: ffff8801b9d9f3a8 R08: 0000000000000000 R09: 0000000000000000 R10: ffff8801b9d9f2d0 R11: 0000000000000000 R12: 1ffff100373b3e64 R13: 00000000ffffffff R14: 0000000000000001 R15: ffff8801b3004720 refcount_dec_and_test+0x1a/0x20 lib/refcount.c:212 kref_put include/linux/kref.h:69 [inline] put_pid_ns+0x9d/0xc0 kernel/pid_namespace.c:192 free_nsproxy+0xfa/0x1f0 kernel/nsproxy.c:182 switch_task_namespaces+0x9d/0xc0 kernel/nsproxy.c:229 exit_task_namespaces+0x17/0x20 kernel/nsproxy.c:234 copy_process.part.38+0x3aba/0x4bd0 kernel/fork.c:1988 copy_process kernel/fork.c:1606 [inline] _do_fork+0x1f7/0xf70 kernel/fork.c:2087 SYSC_clone kernel/fork.c:2194 [inline] SyS_clone+0x37/0x50 kernel/fork.c:2188 do_syscall_64+0x281/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x454e79 RSP: 002b:00007fd1669b7c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fd1669b86d4 RCX: 0000000000454e79 RDX: 00000000200008c0 RSI: 0000000020000800 RDI: 000000002000c100 RBP: 000000000072bea0 R08: 0000000020000940 R09: 0000000000000000 R10: 0000000020000900 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000051 R14: 00000000006f2838 R15: 0000000000000028 Dumping ftrace buffer: (ftrace buffer empty) Kernel Offset: disabled Rebooting in 86400 seconds..
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2018/03/31 13:36 | upstream | b5dbc28762fd | 8fbce0e4 | .config | console log | report | syz | ci-upstream-kasan-gce | ||||
2018/03/30 22:08 | upstream | 9dd2326890d8 | 8fbce0e4 | .config | console log | report | syz | ci-upstream-kasan-gce | ||||
2018/03/31 12:26 | upstream | b5dbc28762fd | 8fbce0e4 | .config | console log | report | ci-upstream-kasan-gce | |||||
2018/03/31 10:51 | upstream | b5dbc28762fd | 8fbce0e4 | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/03/31 05:01 | upstream | 9dd2326890d8 | 8fbce0e4 | .config | console log | report | ci-upstream-kasan-gce-root | |||||
2018/03/30 23:37 | upstream | 9dd2326890d8 | 8fbce0e4 | .config | console log | report | ci-upstream-kasan-gce-root |