Bug 173021
| Summary: | BUG: unable to handle kernel NULL pointer dereference at (null) | ||
|---|---|---|---|
| Product: | Other | Reporter: | Dang Zhiqiang (dzq008) |
| Component: | Modules | Assignee: | other_modules |
| Status: | NEW --- | ||
| Severity: | normal | ||
| Priority: | P1 | ||
| Hardware: | Intel | ||
| OS: | Linux | ||
| Kernel Version: | 2.6.32-220.7.1 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
kernel panic: u32 classifier Performance counters on input device check on Actions configured BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffffa01dc025>] u32_get+0x25/0x90 [cls_u32] PGD 185f661067 PUD 18606ff067 PMD 0 Oops: 0000 [#1] SMP last sysfs file: /sys/devices/system/cpu/cpu23/topology/thread_siblings CPU 20 Modules linked in: act_police cls_u32 sch_ingress sch_htb ip6_tables iptable_filter ip_tables ebtable_nat ebtables stp llc openvswitch(U) libcrc32c ttm vhost_net macvtap macvlan tun kvm_intel kvm wmi acpi_pad igb hwmon dca i2c_algo_bit sg microcode i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support shpchp ext4 mbcache jbd2 sd_mod crc_t10dif isci libsas scsi_transport_sas megaraid_sas pata_acpi ata_generic ata_piix libata scsi_mod dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan] Pid: 32718, comm: tc Not tainted 2.6.32-220.7.1.el6.x86_64 #1 Inspur NF5270M3/NF5270M3 RIP: 0010:[<ffffffffa01dc025>] [<ffffffffa01dc025>] u32_get+0x25/0x90 [cls_u32] RSP: 0018:ffff880c6026b918 EFLAGS: 00010207 RAX: 0000000000000000 RBX: ffff880c5ec22640 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000002 RDI: ffff880c5ec22640 RBP: ffff880c6026b918 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000769 R11: 0000000000001000 R12: ffff880c60341f80 R13: ffff880c60341f5c R14: ffff880c60341ec0 R15: ffff88185d015010 FS: 00007fa60f0d6720(0000) GS:ffff880caa700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000011e71c9000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process tc (pid: 32718, threadinfo ffff880c6026a000, task ffff880c5ee57810) Stack: ffff880c6026ba28 ffffffff81423e8d 0000000000000000 0000000000000000 <0> 0000000000000000 000000000000000c 000000005f59e980 ffff88185d015024 <0> 0031000000000081 ffff88185f59e980 0000000000000000 ffffffffa00e2240 Call Trace: [<ffffffff81423e8d>] tc_ctl_tfilter+0x36d/0x770 [<ffffffff8140f8c0>] rtnetlink_rcv_msg+0x1e0/0x220 [<ffffffff8140f6e0>] ? rtnetlink_rcv_msg+0x0/0x220 [<ffffffff8142a409>] netlink_rcv_skb+0xa9/0xd0 [<ffffffff8140f6c5>] rtnetlink_rcv+0x25/0x40 [<ffffffff8142a066>] netlink_unicast+0x2e6/0x300 [<ffffffff8142a9f0>] netlink_sendmsg+0x200/0x2e0 [<ffffffff813ef2da>] sock_sendmsg+0x11a/0x150 [<ffffffff813ef8c3>] ? sock_recvmsg+0x133/0x160 [<ffffffff81088e90>] ? autoremove_wake_function+0x0/0x40 [<ffffffff8111d760>] ? __lru_cache_add+0x40/0x90 [<ffffffff8111d7d1>] ? lru_cache_add_lru+0x21/0x40 [<ffffffff8113a9bd>] ? page_add_new_anon_rmap+0x7d/0xd0 [<ffffffff813eedc4>] ? move_addr_to_kernel+0x64/0x70 [<ffffffff813ef776>] __sys_sendmsg+0x406/0x420 [<ffffffff81041fa4>] ? __do_page_fault+0x1e4/0x480 [<ffffffff813efbd9>] ? sys_sendto+0x139/0x190 [<ffffffff813f0429>] sys_sendmsg+0x49/0x90 [<ffffffff8100b0b2>] system_call_fastpath+0x16/0x1b Code: <48> 8b 12 48 85 d2 75 f3 31 c0 c9 c3 48 8b 57 08 48 85 d2 74 f3 f7 RIP [<ffffffffa01dc025>] u32_get+0x25/0x90 [cls_u32] RSP <ffff880c6026b918> CR2: 0000000000000000