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general protection fault in __smc_diag_dump (3)

Status: upstream: reported C repro on 2024/11/07 14:17
Subsystems: smc
[Documentation on labels]
Reported-by: syzbot+271fed3ed6f24600c364@syzkaller.appspotmail.com
First crash: 246d, last: 10d
Cause bisection: failed (error log, bisect log)
  
▶ ▼ Discussions (11)
Title Replies (including bot) Last reply
[syzbot] Monthly smc report (Jun 2025) 0 (1) 2025/06/16 12:34
[syzbot] Monthly smc report (May 2025) 0 (1) 2025/05/16 10:17
[PATCH net] net/smc: fix general protection fault in __smc_diag_dump 3 (3) 2025/04/10 03:11
Re: [PATCH net] net/smc: fix general protection fault in __smc_diag_dump 1 (1) 2025/04/03 07:09
Re: [PATCH net] net/smc: fix general protection fault in __smc_diag_dump 1 (1) 2025/04/02 02:37
[syzbot] Monthly s390 report (Mar 2025) 0 (1) 2025/03/08 22:17
[syzbot] Monthly s390 report (Feb 2025) 0 (1) 2025/02/05 12:43
[syzbot] Monthly s390 report (Jan 2025) 0 (1) 2025/01/06 10:01
[syzbot] Monthly s390 report (Dec 2024) 0 (1) 2024/12/05 09:07
[PATCH] Remove unused function parameter in __smc_diag_dump 6 (6) 2024/11/12 07:36
[syzbot] [net?] [s390?] general protection fault in __smc_diag_dump (3) 0 (2) 2024/11/07 20:54
▶ ▼ Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream general protection fault in __smc_diag_dump syz done 309 2353d 2367d 12/29 fixed on 2019/07/10 21:40
linux-4.14 general protection fault in __smc_diag_dump syz error 39 971d 2193d 0/1 upstream: reported syz repro on 2019/06/25 06:51
upstream general protection fault in __smc_diag_dump (2) net s390 14 247d 301d 28/29 fixed on 2024/10/22 11:57
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2025/05/17 22:22 19m retest repro upstream report log
2025/05/17 22:22 15m retest repro upstream report log
2025/05/17 22:22 16m retest repro upstream report log
2025/05/17 22:22 16m retest repro upstream report log
2025/05/17 22:22 16m retest repro upstream report log
2025/02/04 22:13 15m retest repro upstream report log
2024/12/23 21:39 55m retest repro upstream report log
2024/12/23 21:39 13m retest repro upstream report log
2024/12/23 21:39 13m retest repro upstream report log
2024/11/07 20:54 13m crashfixer001@gmail.com upstream report log

Sample crash report:
Oops: general protection fault, probably for non-canonical address 0xdffffc00000a2403: 0000 [#1] SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x0000000000512018-0x000000000051201f]
CPU: 0 UID: 0 PID: 5984 Comm: syz-executor279 Not tainted 6.16.0-rc1-syzkaller-00203-g4774cfe3543a #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:smc_diag_msg_common_fill net/smc/smc_diag.c:44 [inline]
RIP: 0010:__smc_diag_dump.constprop.0+0x3cd/0x24f0 net/smc/smc_diag.c:89
Code: 4c 8b b3 60 05 00 00 4d 85 f6 0f 84 f6 02 00 00 e8 68 3d 8d f6 49 8d 7e 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c7 1e 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b
RSP: 0018:ffffc9000476f1e8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff88807f46a400 RCX: ffffffff89693b24
RDX: 00000000000a2403 RSI: ffffffff8b2ede88 RDI: 0000000000512018
RBP: ffff888031a08000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000001 R11: 0000000000000001 R12: ffff888026d575e8
R13: ffff8880313443c0 R14: 0000000000512000 R15: ffff88807f46a960
FS:  00007fa0e73066c0(0000) GS:ffff888124754000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000e000 CR3: 000000006ff52000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 smc_diag_dump_proto+0x26d/0x420 net/smc/smc_diag.c:217
 smc_diag_dump+0x84/0x90 net/smc/smc_diag.c:236
 netlink_dump+0x51e/0xce0 net/netlink/af_netlink.c:2309
 __netlink_dump_start+0x6d6/0x990 net/netlink/af_netlink.c:2424
 netlink_dump_start include/linux/netlink.h:341 [inline]
 smc_diag_handler_dump+0x1f9/0x240 net/smc/smc_diag.c:251
 __sock_diag_cmd net/core/sock_diag.c:249 [inline]
 sock_diag_rcv_msg+0x438/0x790 net/core/sock_diag.c:285
 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2534
 netlink_unicast_kernel net/netlink/af_netlink.c:1313 [inline]
 netlink_unicast+0x53a/0x7f0 net/netlink/af_netlink.c:1339
 netlink_sendmsg+0x8d1/0xdd0 net/netlink/af_netlink.c:1883
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg net/socket.c:727 [inline]
 ____sys_sendmsg+0xa98/0xc70 net/socket.c:2566
 ___sys_sendmsg+0x134/0x1d0 net/socket.c:2620
 __sys_sendmsg+0x16d/0x220 net/socket.c:2652
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa0e73503d9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa0e7306218 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fa0e73d7328 RCX: 00007fa0e73503d9
RDX: 0000000000000600 RSI: 0000200000000540 RDI: 0000000000000005
RBP: 00007fa0e73d7320 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa0e73a4074
R13: 0000200000000340 R14: 0000200000000550 R15: 0000200000000540
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:smc_diag_msg_common_fill net/smc/smc_diag.c:44 [inline]
RIP: 0010:__smc_diag_dump.constprop.0+0x3cd/0x24f0 net/smc/smc_diag.c:89
Code: 4c 8b b3 60 05 00 00 4d 85 f6 0f 84 f6 02 00 00 e8 68 3d 8d f6 49 8d 7e 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c7 1e 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b
RSP: 0018:ffffc9000476f1e8 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffff88807f46a400 RCX: ffffffff89693b24
RDX: 00000000000a2403 RSI: ffffffff8b2ede88 RDI: 0000000000512018
RBP: ffff888031a08000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000001 R11: 0000000000000001 R12: ffff888026d575e8
R13: ffff8880313443c0 R14: 0000000000512000 R15: ffff88807f46a960
FS:  00007fa0e73066c0(0000) GS:ffff888124754000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000e000 CR3: 000000006ff52000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	4c 8b b3 60 05 00 00 	mov    0x560(%rbx),%r14
   7:	4d 85 f6             	test   %r14,%r14
   a:	0f 84 f6 02 00 00    	je     0x306
  10:	e8 68 3d 8d f6       	call   0xf68d3d7d
  15:	49 8d 7e 18          	lea    0x18(%r14),%rdi
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
* 2a:	80 3c 02 00          	cmpb   $0x0,(%rdx,%rax,1) <-- trapping instruction
  2e:	0f 85 c7 1e 00 00    	jne    0x1efb
  34:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  3b:	fc ff df
  3e:	4d                   	rex.WRB
  3f:	8b                   	.byte 0x8b

Crashes (92):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/06/14 20:02 upstream 4774cfe3543a 5f4b362d .config strace log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in __smc_diag_dump
2025/02/27 15:16 upstream dd83757f6e68 6a8fcbc4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in __smc_diag_dump
2024/10/22 21:24 upstream c2ee9f594da8 a573a9f4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in __smc_diag_dump
2024/10/22 20:12 upstream c2ee9f594da8 a573a9f4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in __smc_diag_dump
2024/10/22 19:03 upstream c2ee9f594da8 a573a9f4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in __smc_diag_dump
2024/10/22 17:59 upstream c2ee9f594da8 a573a9f4 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in __smc_diag_dump
2025/06/15 17:24 upstream 8c6bc74c7f89 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in __smc_diag_dump
2025/06/14 17:17 upstream 4774cfe3543a 5f4b362d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in __smc_diag_dump
2025/06/06 07:44 upstream 7fdaba912981 6b6b5f21 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in __smc_diag_dump
2025/06/05 05:17 upstream 64980441d269 6b6b5f21 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in __smc_diag_dump
2025/05/29 18:34 upstream 90b83efa6701 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in __smc_diag_dump
2025/05/29 18:30 upstream 90b83efa6701 3d2f584d .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in __smc_diag_dump
2025/05/27 08:02 upstream 0ff41df1cb26 874a1386 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in __smc_diag_dump
2025/05/21 04:42 upstream b36ddb9210e6 8f9cf946 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in __smc_diag_dump
2025/04/29 06:39 upstream f15d97df5afa aeb6ec69 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in __smc_diag_dump
2025/04/27 21:52 upstream 5bc1018675ec c6b4fb39 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in __smc_diag_dump
2025/04/22 21:57 upstream a33b5a08cbbd 53a8b9bd .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in __smc_diag_dump
2025/03/19 14:17 upstream 81e4f8d68c66 8d0a2921 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in __smc_diag_dump
2025/03/07 08:34 upstream 0f52fd4f67c6 831e3629 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root general protection fault in __smc_diag_dump
2025/02/27 14:28 upstream dd83757f6e68 6a8fcbc4 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in __smc_diag_dump
2025/01/21 21:59 upstream 95ec54a420b8 da72ac06 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in __smc_diag_dump
2025/01/09 12:51 upstream eea6e4b4dfb8 f3558dbf .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root general protection fault in __smc_diag_dump
2024/11/04 16:06 upstream 59b723cd2adb 7bfecfb9 .config console log report info [disk image] [vmlinux] [kernel image] ci-qemu-gce-upstream-auto general protection fault in __smc_diag_dump
2025/05/29 01:54 upstream feacb1774bd5 3d2f584d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/05/28 14:46 upstream c89756bcf406 874a1386 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/05/26 22:17 upstream 0ff41df1cb26 874a1386 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/05/21 09:42 upstream b36ddb9210e6 b47f9e02 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/05/19 05:46 upstream a5806cd506af f41472b0 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/05/03 22:18 upstream 95d3481af6dc b0714e37 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/26 20:29 upstream f1a3944c860b c6b4fb39 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/26 14:40 upstream f1a3944c860b c6b4fb39 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/26 07:18 upstream c3137514f1f1 c6b4fb39 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/23 10:59 upstream bc3372351d0c 57d54c08 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/23 03:37 upstream bc3372351d0c 53a8b9bd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/20 19:28 upstream 6fea5fabd332 2a20f901 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/20 14:13 upstream 119009db2674 2a20f901 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/19 08:30 upstream 3088d26962e8 2a20f901 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/19 02:09 upstream 3088d26962e8 2a20f901 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/16 10:28 upstream 1a1d569a75f3 a95239b1 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/15 07:41 upstream 834a4a689699 0bd6db41 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/13 05:13 upstream 7cdabafc0012 0bd6db41 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/11 20:42 upstream 900241a5cc15 12ba9c21 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/07 17:10 upstream 0af2f6be1b42 2f0c9720 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/07 11:19 upstream 0af2f6be1b42 2f0c9720 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/04/05 12:25 upstream 9f867ba24d36 c53ea9c9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/03/26 20:14 upstream 1e26c5e28ca5 19e40f48 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/03/24 08:05 upstream 586de92313fc 875573af .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/03/22 07:49 upstream d07de43e3f05 c6512ef7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream general protection fault in __smc_diag_dump
2025/06/15 06:30 upstream 8c6bc74c7f89 5f4b362d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in __smc_diag_dump
2025/05/31 22:44 upstream 0f70f5b08a47 3d2f584d .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in __smc_diag_dump
2025/04/27 15:30 upstream 5bc1018675ec c6b4fb39 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in __smc_diag_dump
2025/03/28 09:56 upstream 4fa118e5b79f 6c09fb82 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in __smc_diag_dump
2024/12/28 02:10 upstream 8379578b11d5 d3ccff63 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream-386 general protection fault in __smc_diag_dump
* Struck through repros no longer work on HEAD.