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Date: Sun, 17 Sep 2023 14:35:15 +0300 From: Martin Zaharinov <micron10@...il.com> To: Paolo Abeni <pabeni@...hat.com> Cc: netdev <netdev@...r.kernel.org>, Eric Dumazet <edumazet@...gle.com>, patchwork-bot+netdevbpf@...nel.org, Jakub Kicinski <kuba@...nel.org>, Stephen Hemminger <stephen@...workplumber.org>, kuba+netdrv@...nel.org, dsahern@...il.com Subject: Re: Urgent Bug Report Kernel crash 6.5.2 Hi Paolo and Eric See this is latest crash from kernel 6.5.3 without external moduls…. first is crash report , second is with decode: Sep 17 11:43:11 [127675.391688][ C2] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) Sep 17 11:43:11 [127675.391780][ C2] BUG: unable to handle page fault for address: ffff9bd9ff20f858 Sep 17 11:43:11 [127675.391859][ C2] #PF: supervisor instruction fetch in kernel mode Sep 17 11:43:11 [127675.391937][ C2] #PF: error_code(0x0011) - permissions violation Sep 17 11:43:11 [127675.392014][ C2] PGD 1a601067 P4D 1a601067 PUD 147b05063 PMD 800000023f2001e3 Sep 17 11:43:11 [127675.392099][ C2] Oops: 0011 [#1] PREEMPT SMP Sep 17 11:43:11 [127675.392173][ C2] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G O 6.5.3 #1 Sep 17 11:43:11 [127675.392257][ C2] Hardware name: Supermicro SYS-5038MR-H8TRF/X10SRD-F, BIOS 3.3 10/28/2020 Sep 17 11:43:11 [127675.392338][ C2] RIP: 0010:0xffff9bd9ff20f858 Sep 17 11:43:11 [127675.392413][ C2] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 58 f8 20 ff d9 9b ff ff 00 00 00 00 00 00 Sep 17 11:43:11 [127675.392540][ C2] RSP: 0018:ffffadfe0007ccc8 EFLAGS: 00010282 Sep 17 11:43:11 [127675.392635][ C2] RAX: ffff9bd9ff20f858 RBX: ffff9bd9ff20f800 RCX: 0000000000000000 Sep 17 11:43:11 [127675.392753][ C2] RDX: 0000000000002711 RSI: 0000000000000246 RDI: ffff9bd9ff20f800 Sep 17 11:43:11 [127675.392871][ C2] RBP: ffff9bd9ff20f800 R08: 000000010ca6060f R09: 00000000000079f2 Sep 17 11:43:11 [127675.392988][ C2] R10: ffffd88b47077c00 R11: 0000000000000000 R12: ffff9bd9bb6ca1c0 Sep 17 11:43:11 [127675.393107][ C2] R13: ffff9bd9b9013760 R14: 0000000000000053 R15: ffff9bd9b9013600 Sep 17 11:43:11 [127675.393226][ C2] FS: 0000000000000000(0000) GS:ffff9be01f680000(0000) knlGS:0000000000000000 Sep 17 11:43:11 [127675.393347][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Sep 17 11:43:11 [127675.393445][ C2] CR2: ffff9bd9ff20f858 CR3: 0000000234668001 CR4: 00000000003706e0 Sep 17 11:43:11 [127675.393562][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Sep 17 11:43:11 [127675.393677][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Sep 17 11:43:11 [127675.393794][ C2] Call Trace: Sep 17 11:43:11 [127675.393886][ C2] <IRQ> Sep 17 11:43:11 [127675.393973][ C2] ? __die+0xe4/0xf0 Sep 17 11:43:11 [127675.394065][ C2] ? page_fault_oops+0x144/0x3e0 Sep 17 11:43:11 [127675.394157][ C2] ? exc_page_fault+0x92/0xa0 Sep 17 11:43:11 [127675.394251][ C2] ? asm_exc_page_fault+0x22/0x30 Sep 17 11:43:11 [127675.394347][ C2] ? kfree_skb_reason+0x33/0xf0 Sep 17 11:43:11 [127675.394443][ C2] ? tcp_mtu_probe+0x3a6/0x7b0 Sep 17 11:43:11 [127675.394539][ C2] ? tcp_write_xmit+0x7fa/0x1410 Sep 17 11:43:11 [127675.394634][ C2] ? __tcp_push_pending_frames+0x2d/0xb0 Sep 17 11:43:11 [127675.394727][ C2] ? tcp_rcv_established+0x205/0x610 Sep 17 11:43:11 [127675.394822][ C2] ? sk_filter_trim_cap+0xc6/0x1c0 Sep 17 11:43:11 [127675.394914][ C2] ? tcp_v4_do_rcv+0x11f/0x1f0 Sep 17 11:43:11 [127675.395007][ C2] ? tcp_v4_rcv+0xfa1/0x1010 Sep 17 11:43:11 [127675.395100][ C2] ? ip_protocol_deliver_rcu+0x1b/0x270 Sep 17 11:43:11 [127675.395196][ C2] ? ip_local_deliver_finish+0x6d/0x90 Sep 17 11:43:11 [127675.395289][ C2] ? process_backlog+0x10c/0x230 Sep 17 11:43:11 [127675.395386][ C2] ? __napi_poll+0x20/0x180 Sep 17 11:43:11 [127675.395478][ C2] ? net_rx_action+0x2a4/0x390 Sep 17 11:43:11 [127675.395572][ C2] ? __do_softirq+0xd0/0x202 Sep 17 11:43:11 [127675.395666][ C2] ? do_softirq+0x3a/0x50 Sep 17 11:43:11 [127675.395760][ C2] </IRQ> Sep 17 11:43:11 [127675.395849][ C2] <TASK> Sep 17 11:43:11 [127675.395939][ C2] ? flush_smp_call_function_queue+0x3f/0x50 Sep 17 11:43:11 [127675.396039][ C2] ? do_idle+0x14d/0x210 Sep 17 11:43:11 [127675.396132][ C2] ? cpu_startup_entry+0x14/0x20 Sep 17 11:43:11 [127675.396224][ C2] ? start_secondary+0xe1/0xf0 Sep 17 11:43:11 [127675.396318][ C2] ? secondary_startup_64_no_verify+0x167/0x16b Sep 17 11:43:11 [127675.396417][ C2] </TASK> Sep 17 11:43:11 [127675.396504][ C2] Modules linked in: nf_conntrack_netlink nft_limit pppoe pppox ppp_generic slhc nft_ct nft_nat nft_chain_nat nf_tables netconsole coretemp bonding i40e nf_nat_sip nf_conntrack_sip nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ipmi_si ipmi_devintf ipmi_msghandler rtc_cmos Sep 17 11:43:11 [127675.396775][ C2] CR2: ffff9bd9ff20f858 Sep 17 11:43:11 [127675.396868][ C2] ---[ end trace 0000000000000000 ]--- Sep 17 11:43:11 [127675.396961][ C2] RIP: 0010:0xffff9bd9ff20f858 Sep 17 11:43:11 [127675.397052][ C2] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 58 f8 20 ff d9 9b ff ff 00 00 00 00 00 00 Sep 17 11:43:11 [127675.397211][ C2] RSP: 0018:ffffadfe0007ccc8 EFLAGS: 00010282 Sep 17 11:43:11 [127675.397305][ C2] RAX: ffff9bd9ff20f858 RBX: ffff9bd9ff20f800 RCX: 0000000000000000 Sep 17 11:43:11 [127675.397419][ C2] RDX: 0000000000002711 RSI: 0000000000000246 RDI: ffff9bd9ff20f800 Sep 17 11:43:11 [127675.397535][ C2] RBP: ffff9bd9ff20f800 R08: 000000010ca6060f R09: 00000000000079f2 Sep 17 11:43:11 [127675.397651][ C2] R10: ffffd88b47077c00 R11: 0000000000000000 R12: ffff9bd9bb6ca1c0 Sep 17 11:43:11 [127675.397767][ C2] R13: ffff9bd9b9013760 R14: 0000000000000053 R15: ffff9bd9b9013600 Sep 17 11:43:11 [127675.397886][ C2] FS: 0000000000000000(0000) GS:ffff9be01f680000(0000) knlGS:0000000000000000 Sep 17 11:43:11 [127675.398006][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Sep 17 11:43:11 [127675.398101][ C2] CR2: ffff9bd9ff20f858 CR3: 0000000234668001 CR4: 00000000003706e0 Sep 17 11:43:11 [127675.398217][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Sep 17 11:43:11 [127675.398334][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Sep 17 11:43:11 [127675.398451][ C2] Kernel panic - not syncing: Fatal exception in interrupt Sep 17 11:43:11 [127675.503611][ C2] Kernel Offset: 0x20000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) Sep 17 11:43:11 [127675.503734][ C2] Rebooting in 10 seconds.. Second with decode: Sep 17 11:43:11 [127675.391688][ C2] kernel tried to execute NX-protected page - exploit attempt? (uid: 0) Sep 17 11:43:11 [127675.391780][ C2] BUG: unable to handle page fault for address: ffff9bd9ff20f858 Sep 17 11:43:11 [127675.391859][ C2] #PF: supervisor instruction fetch in kernel mode Sep 17 11:43:11 [127675.391937][ C2] #PF: error_code(0x0011) - permissions violation Sep 17 11:43:11 [127675.392014][ C2] PGD 1a601067 P4D 1a601067 PUD 147b05063 PMD 800000023f2001e3 Sep 17 11:43:11 [127675.392099][ C2] Oops: 0011 [#1] PREEMPT SMP Sep 17 11:43:11 [127675.392173][ C2] CPU: 2 PID: 0 Comm: swapper/2 Tainted: G O 6.5.3 #1 Sep 17 11:43:11 [127675.392257][ C2] Hardware name: Supermicro SYS-5038MR-H8TRF/X10SRD-F, BIOS 3.3 10/28/2020 Sep 17 11:43:11 [127675.392338][ C2] RIP: 0010:0xffff9bd9ff20f858 Sep 17 11:43:11 [127675.392413][ C2] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 58 f8 20 ff d9 9b ff ff 00 00 00 00 00 00 All code ======== ... 30: 00 00 add %al,(%rax) 32: 58 pop %rax 33:* f8 clc <-- trapping instruction 34: 20 ff and %bh,%bh 36: d9 9b ff ff 00 00 fstps 0xffff(%rbx) 3c: 00 00 add %al,(%rax) ... Code starting with the faulting instruction =========================================== ... 8: 58 pop %rax 9: f8 clc a: 20 ff and %bh,%bh c: d9 9b ff ff 00 00 fstps 0xffff(%rbx) 12: 00 00 add %al,(%rax) ... Sep 17 11:43:11 [127675.392540][ C2] RSP: 0018:ffffadfe0007ccc8 EFLAGS: 00010282 Sep 17 11:43:11 [127675.392635][ C2] RAX: ffff9bd9ff20f858 RBX: ffff9bd9ff20f800 RCX: 0000000000000000 Sep 17 11:43:11 [127675.392753][ C2] RDX: 0000000000002711 RSI: 0000000000000246 RDI: ffff9bd9ff20f800 Sep 17 11:43:11 [127675.392871][ C2] RBP: ffff9bd9ff20f800 R08: 000000010ca6060f R09: 00000000000079f2 Sep 17 11:43:11 [127675.392988][ C2] R10: ffffd88b47077c00 R11: 0000000000000000 R12: ffff9bd9bb6ca1c0 Sep 17 11:43:11 [127675.393107][ C2] R13: ffff9bd9b9013760 R14: 0000000000000053 R15: ffff9bd9b9013600 Sep 17 11:43:11 [127675.393226][ C2] FS: 0000000000000000(0000) GS:ffff9be01f680000(0000) knlGS:0000000000000000 Sep 17 11:43:11 [127675.393347][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Sep 17 11:43:11 [127675.393445][ C2] CR2: ffff9bd9ff20f858 CR3: 0000000234668001 CR4: 00000000003706e0 Sep 17 11:43:11 [127675.393562][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Sep 17 11:43:11 [127675.393677][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Sep 17 11:43:11 [127675.393794][ C2] Call Trace: Sep 17 11:43:11 [127675.393886][ C2] <IRQ> Sep 17 11:43:11 [127675.393973][ C2] ? __die (arch/x86/kernel/dumpstack.c:478 (discriminator 1) arch/x86/kernel/dumpstack.c:465 (discriminator 1) arch/x86/kernel/dumpstack.c:420 (discriminator 1) arch/x86/kernel/dumpstack.c:434 (discriminator 1)) Sep 17 11:43:11 [127675.394065][ C2] ? page_fault_oops (arch/x86/mm/fault.c:703) Sep 17 11:43:11 [127675.394157][ C2] ? exc_page_fault (arch/x86/mm/fault.c:48 (discriminator 2) arch/x86/mm/fault.c:1479 (discriminator 2) arch/x86/mm/fault.c:1542 (discriminator 2)) Sep 17 11:43:11 [127675.394251][ C2] ? asm_exc_page_fault (./arch/x86/include/asm/idtentry.h:570) Sep 17 11:43:11 [127675.394347][ C2] ? kfree_skb_reason (net/core/skbuff.c:1006 net/core/skbuff.c:1022 net/core/skbuff.c:1058) Sep 17 11:43:11 [127675.394443][ C2] ? tcp_mtu_probe (./include/net/sock.h:1627 (discriminator 1) net/ipv4/tcp_output.c:2338 (discriminator 1) net/ipv4/tcp_output.c:2463 (discriminator 1)) Sep 17 11:43:11 [127675.394539][ C2] ? tcp_write_xmit (net/ipv4/tcp_output.c:2678) Sep 17 11:43:11 [127675.394634][ C2] ? __tcp_push_pending_frames (net/ipv4/tcp_output.c:2940 (discriminator 1)) Sep 17 11:43:11 [127675.394727][ C2] ? tcp_rcv_established (./include/net/tcp.h:2033 net/ipv4/tcp_input.c:5545 net/ipv4/tcp_input.c:6065) Sep 17 11:43:11 [127675.394822][ C2] ? sk_filter_trim_cap (./include/linux/rcupdate.h:781 net/core/filter.c:157) Sep 17 11:43:11 [127675.394914][ C2] ? tcp_v4_do_rcv (net/ipv4/tcp_ipv4.c:1728) Sep 17 11:43:11 [127675.395007][ C2] ? tcp_v4_rcv (./include/net/tcp.h:2342 (discriminator 1) net/ipv4/tcp_ipv4.c:2147 (discriminator 1)) Sep 17 11:43:11 [127675.395100][ C2] ? ip_protocol_deliver_rcu (net/ipv4/ip_input.c:205) Sep 17 11:43:11 [127675.395196][ C2] ? ip_local_deliver_finish (net/ipv4/ip_input.c:233 (discriminator 1)) Sep 17 11:43:11 [127675.395289][ C2] ? process_backlog (net/core/dev.c:5451 net/core/dev.c:5566 net/core/dev.c:5895) Sep 17 11:43:11 [127675.395386][ C2] ? __napi_poll+0x20/0x180 Sep 17 11:43:11 [127675.395478][ C2] ? net_rx_action (net/core/dev.c:5839 net/core/dev.c:5860 net/core/dev.c:6684) Sep 17 11:43:11 [127675.395572][ C2] ? __do_softirq (./arch/x86/include/asm/bitops.h:319 kernel/softirq.c:550) Sep 17 11:43:11 [127675.395666][ C2] ? do_softirq (kernel/softirq.c:463 (discriminator 32)) Sep 17 11:43:11 [127675.395760][ C2] </IRQ> Sep 17 11:43:11 [127675.395849][ C2] <TASK> Sep 17 11:43:11 [127675.395939][ C2] ? flush_smp_call_function_queue (kernel/smp.c:563 (discriminator 1)) Sep 17 11:43:11 [127675.396039][ C2] ? do_idle (kernel/sched/idle.c:295) Sep 17 11:43:11 [127675.396132][ C2] ? cpu_startup_entry (kernel/sched/idle.c:379 (discriminator 1)) Sep 17 11:43:11 [127675.396224][ C2] ? start_secondary (arch/x86/kernel/smpboot.c:326) Sep 17 11:43:11 [127675.396318][ C2] ? secondary_startup_64_no_verify (arch/x86/kernel/head_64.S:441) Sep 17 11:43:11 [127675.396417][ C2] </TASK> Sep 17 11:43:11 [127675.396504][ C2] Modules linked in: nf_conntrack_netlink nft_limit pppoe pppox ppp_generic slhc nft_ct nft_nat nft_chain_nat nf_tables netconsole coretemp bonding i40e nf_nat_sip nf_conntrack_sip nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ipmi_si ipmi_devintf ipmi_msghandler rtc_cmos Sep 17 11:43:11 [127675.396775][ C2] CR2: ffff9bd9ff20f858 Sep 17 11:43:11 [127675.396868][ C2] ---[ end trace 0000000000000000 ]--- Sep 17 11:43:11 [127675.396961][ C2] RIP: 0010:0xffff9bd9ff20f858 Sep 17 11:43:11 [127675.397052][ C2] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 58 f8 20 ff d9 9b ff ff 00 00 00 00 00 00 All code ======== ... 30: 00 00 add %al,(%rax) 32: 58 pop %rax 33:* f8 clc <-- trapping instruction 34: 20 ff and %bh,%bh 36: d9 9b ff ff 00 00 fstps 0xffff(%rbx) 3c: 00 00 add %al,(%rax) ... Code starting with the faulting instruction =========================================== ... 8: 58 pop %rax 9: f8 clc a: 20 ff and %bh,%bh c: d9 9b ff ff 00 00 fstps 0xffff(%rbx) 12: 00 00 add %al,(%rax) ... Sep 17 11:43:11 [127675.397211][ C2] RSP: 0018:ffffadfe0007ccc8 EFLAGS: 00010282 Sep 17 11:43:11 [127675.397305][ C2] RAX: ffff9bd9ff20f858 RBX: ffff9bd9ff20f800 RCX: 0000000000000000 Sep 17 11:43:11 [127675.397419][ C2] RDX: 0000000000002711 RSI: 0000000000000246 RDI: ffff9bd9ff20f800 Sep 17 11:43:11 [127675.397535][ C2] RBP: ffff9bd9ff20f800 R08: 000000010ca6060f R09: 00000000000079f2 Sep 17 11:43:11 [127675.397651][ C2] R10: ffffd88b47077c00 R11: 0000000000000000 R12: ffff9bd9bb6ca1c0 Sep 17 11:43:11 [127675.397767][ C2] R13: ffff9bd9b9013760 R14: 0000000000000053 R15: ffff9bd9b9013600 Sep 17 11:43:11 [127675.397886][ C2] FS: 0000000000000000(0000) GS:ffff9be01f680000(0000) knlGS:0000000000000000 Sep 17 11:43:11 [127675.398006][ C2] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Sep 17 11:43:11 [127675.398101][ C2] CR2: ffff9bd9ff20f858 CR3: 0000000234668001 CR4: 00000000003706e0 Sep 17 11:43:11 [127675.398217][ C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Sep 17 11:43:11 [127675.398334][ C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Sep 17 11:43:11 [127675.398451][ C2] Kernel panic - not syncing: Fatal exception in interrupt Sep 17 11:43:11 [127675.503611][ C2] Kernel Offset: 0x20000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) Sep 17 11:43:11 [127675.503734][ C2] Rebooting in 10 seconds.. P.S. upload kernel on 5 machine with diff hw and make same on every one . Best regrads, m. > On 16 Sep 2023, at 12:04, Martin Zaharinov <micron10@...il.com> wrote: > > Hi Paolo > > in first report machine dont have out of tree module > > this bug is come after move from kernel 6.2 to 6.3 > > m. > > On Sat, Sep 16, 2023, 11:27 Paolo Abeni <pabeni@...hat.com> wrote: > On Sat, 2023-09-16 at 02:11 +0300, Martin Zaharinov wrote: > > one more log: > > > > Sep 12 07:37:29 [151563.298466][ C5] ------------[ cut here ]------------ > > Sep 12 07:37:29 [151563.298550][ C5] rcuref - imbalanced put() > > Sep 12 07:37:29 [151563.298564][ C5] WARNING: CPU: 5 PID: 0 at lib/rcuref.c:267 rcuref_put_slowpath (lib/rcuref.c:267 (discriminator 1)) > > Sep 12 07:37:29 [151563.298724][ C5] Modules linked in: nft_limit nf_conntrack_netlink vlan_mon(O) pppoe pppox ppp_generic slhc nft_ct nft_nat nft_chain_nat nf_tables netconsole coretemp bonding i40e nf_nat_sip nf_conntrack_sip nf_nat_pptp nf_conntrack_pptp nf_nat_tftp nf_conntrack_tftp nf_nat_ftp nf_conntrack_ftp nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_xnatlog(O) ipmi_si ipmi_devintf ipmi_msghandler rtc_cmos [last unloaded: BNGBOOT(O)] > > Sep 12 07:37:29 [151563.298894][ C5] CPU: 5 PID: 0 Comm: swapper/5 Tainted: G O 6.5.2 #1 > > > You have out-of-tree modules taint in all the report you shared. Please > try to reproduce the issue with such taint, thanks! > > Paolo >
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