Public bug reported:
[77211.421509] BUG: unable to handle kernel NULL pointer dereference at
0000000000000008
[77211.422467] IP: process_one_work+0x2e/0x410
[77211.422970] PGD 0 P4D 0
[77211.423278] Oops: 0000 [#1] SMP PTI
[77211.423699] Modules linked in: binfmt_misc dccp_diag dccp udp_diag unix_diag
af_packet_diag netlink_diag tcp_diag inet_diag xt_multiport iptable_filter
ip_tables 8021q garp mrp stp llc bonding ip6t_REJECT nf_reject_ipv6 nf_log_ipv6
xt_hl ip6t_rt intel_rapl skx_edac x86_pkg_temp_thermal coretemp kvm_intel kvm
irqbypass nf_conntrack_ipv6 nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 ipmi_si
nf_log_ipv4 nf_log_common xt_LOG intel_cstate xt_limit input_leds joydev
xt_tcpudp ipmi_devintf intel_rapl_perf xt_addrtype ipmi_msghandler shpchp
lpc_ich mei_me mei ioatdma dca mac_hid acpi_power_meter nf_conntrack_ipv4
nf_defrag_ipv4 xt_conntrack ip6table_filter ib_iser rdma_cm iw_cm ib_cm ib_core
ip6_tables iscsi_tcp libiscsi_tcp libiscsi nf_conntrack_netbios_ns
nf_conntrack_broadcast scsi_transport_iscsi nf_nat_ftp
[77211.432146] nf_nat nf_conntrack_ftp toa(OE) nf_conntrack lp parport
x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov
async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0
multipath linear hid_generic crct10dif_pclmul crc32_pclmul hibmc_drm
ghash_clmulni_intel ttm usbhid pcbc drm_kms_helper hid syscopyarea ses
aesni_intel sysfillrect enclosure aes_x86_64 sysimgblt i40e crypto_simd
scsi_transport_sas fb_sys_fops glue_helper ptp megaraid_sas cryptd drm ahci
pps_core libahci [last unloaded: ip_tables]
[77211.437829] CPU: 78 PID: 481 Comm: kworker/78:0 Tainted: G OE
4.15.0-21-shopee-generic #22~16.04.1+3
[77211.439038] Hardware name: Huawei 2288H V5/BC11SPSCB0, BIOS 0.62 03/26/2018
[77211.439865] RIP: 0010:process_one_work+0x2e/0x410
[77211.440417] RSP: 0000:ffffa81d0d7e3e88 EFLAGS: 00010046
[77211.441032] RAX: 0000000000000000 RBX: ffff8a2ebf5a2180 RCX: ffff8a2ebf5a8a60
[77211.441869] RDX: ffff8a2ebf5a8a60 RSI: ffffa81d2f38bb08 RDI: ffff8a2eb71a35c0
[77211.442710] RBP: ffffa81d0d7e3ec0 R08: fffffffffffffffc R09: 0000000000000003
[77211.443547] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8a2ebf5a2180
[77211.444383] R13: ffff8a2ebf5a2180 R14: 0000000000000000 R15: ffff8a2eb71a35c0
[77211.445222] FS: 0000000000000000(0000) GS:ffff8a2ebf580000(0000)
knlGS:0000000000000000
[77211.446175] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[77211.446850] CR2: 00000000000000b0 CR3: 0000003eb220a003 CR4: 00000000007606e0
[77211.447688] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[77211.448525] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[77211.475504] PKRU: 55555554
[77211.502040] Call Trace:
[77211.528218] worker_thread+0x253/0x410
[77211.554162] kthread+0x121/0x140
[77211.579749] ? process_one_work+0x410/0x410
[77211.605690] ? kthread_create_worker_on_cpu+0x70/0x70
[77211.631715] ret_from_fork+0x35/0x40
[77211.657159] Code: 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 10
48 8b 06 4c 8b 6f 48 49 89 c6 45 30 f6 a8 04 b8 00 00 00 00 4c 0f 44 f0 <49> 8b
46 08 44 8b b8 00 01 00 00 41 83 e7 20 41 f6 45 10 04 75
[77211.733169] RIP: process_one_work+0x2e/0x410 RSP: ffffa81d0d7e3e88
[77211.758179] CR2: 0000000000000008
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "linux-image-4.15.0-21-shopee-generic-201811272246.crash"
https://bugs.launchpad.net/bugs/1805655/+attachment/5217017/+files/linux-image-4.15.0-21-shopee-generic-201811272246.crash
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https://bugs.launchpad.net/bugs/1805655
Title:
BUG: unable to handle kernel NULL pointer dereference at
0000000000000008
Status in linux package in Ubuntu:
New
Bug description:
[77211.421509] BUG: unable to handle kernel NULL pointer dereference at
0000000000000008
[77211.422467] IP: process_one_work+0x2e/0x410
[77211.422970] PGD 0 P4D 0
[77211.423278] Oops: 0000 [#1] SMP PTI
[77211.423699] Modules linked in: binfmt_misc dccp_diag dccp udp_diag
unix_diag af_packet_diag netlink_diag tcp_diag inet_diag xt_multiport
iptable_filter ip_tables 8021q garp mrp stp llc bonding ip6t_REJECT
nf_reject_ipv6 nf_log_ipv6 xt_hl ip6t_rt intel_rapl skx_edac
x86_pkg_temp_thermal coretemp kvm_intel kvm irqbypass nf_conntrack_ipv6
nf_defrag_ipv6 ipt_REJECT nf_reject_ipv4 ipmi_si nf_log_ipv4 nf_log_common
xt_LOG intel_cstate xt_limit input_leds joydev xt_tcpudp ipmi_devintf
intel_rapl_perf xt_addrtype ipmi_msghandler shpchp lpc_ich mei_me mei ioatdma
dca mac_hid acpi_power_meter nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack
ip6table_filter ib_iser rdma_cm iw_cm ib_cm ib_core ip6_tables iscsi_tcp
libiscsi_tcp libiscsi nf_conntrack_netbios_ns nf_conntrack_broadcast
scsi_transport_iscsi nf_nat_ftp
[77211.432146] nf_nat nf_conntrack_ftp toa(OE) nf_conntrack lp parport
x_tables autofs4 btrfs zstd_compress raid10 raid456 async_raid6_recov
async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c raid1 raid0
multipath linear hid_generic crct10dif_pclmul crc32_pclmul hibmc_drm
ghash_clmulni_intel ttm usbhid pcbc drm_kms_helper hid syscopyarea ses
aesni_intel sysfillrect enclosure aes_x86_64 sysimgblt i40e crypto_simd
scsi_transport_sas fb_sys_fops glue_helper ptp megaraid_sas cryptd drm ahci
pps_core libahci [last unloaded: ip_tables]
[77211.437829] CPU: 78 PID: 481 Comm: kworker/78:0 Tainted: G OE
4.15.0-21-shopee-generic #22~16.04.1+3
[77211.439038] Hardware name: Huawei 2288H V5/BC11SPSCB0, BIOS 0.62 03/26/2018
[77211.439865] RIP: 0010:process_one_work+0x2e/0x410
[77211.440417] RSP: 0000:ffffa81d0d7e3e88 EFLAGS: 00010046
[77211.441032] RAX: 0000000000000000 RBX: ffff8a2ebf5a2180 RCX:
ffff8a2ebf5a8a60
[77211.441869] RDX: ffff8a2ebf5a8a60 RSI: ffffa81d2f38bb08 RDI:
ffff8a2eb71a35c0
[77211.442710] RBP: ffffa81d0d7e3ec0 R08: fffffffffffffffc R09:
0000000000000003
[77211.443547] R10: 0000000000000000 R11: 0000000000000000 R12:
ffff8a2ebf5a2180
[77211.444383] R13: ffff8a2ebf5a2180 R14: 0000000000000000 R15:
ffff8a2eb71a35c0
[77211.445222] FS: 0000000000000000(0000) GS:ffff8a2ebf580000(0000)
knlGS:0000000000000000
[77211.446175] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[77211.446850] CR2: 00000000000000b0 CR3: 0000003eb220a003 CR4:
00000000007606e0
[77211.447688] DR0: 0000000000000000 DR1: 0000000000000000 DR2:
0000000000000000
[77211.448525] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7:
0000000000000400
[77211.475504] PKRU: 55555554
[77211.502040] Call Trace:
[77211.528218] worker_thread+0x253/0x410
[77211.554162] kthread+0x121/0x140
[77211.579749] ? process_one_work+0x410/0x410
[77211.605690] ? kthread_create_worker_on_cpu+0x70/0x70
[77211.631715] ret_from_fork+0x35/0x40
[77211.657159] Code: 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 10
48 8b 06 4c 8b 6f 48 49 89 c6 45 30 f6 a8 04 b8 00 00 00 00 4c 0f 44 f0 <49> 8b
46 08 44 8b b8 00 01 00 00 41 83 e7 20 41 f6 45 10 04 75
[77211.733169] RIP: process_one_work+0x2e/0x410 RSP: ffffa81d0d7e3e88
[77211.758179] CR2: 0000000000000008
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