* [syzbot] BUG: corrupted list in nfc_llcp_register_device @ 2022-12-21 8:14 syzbot 2023-01-23 7:58 ` syzbot 0 siblings, 1 reply; 2+ messages in thread From: syzbot @ 2022-12-21 8:14 UTC (permalink / raw) To: davem, dvyukov, edumazet, krzysztof.kozlowski, kuba, linma, linux-kernel, netdev, pabeni, syzkaller-bugs Hello, syzbot found the following issue on: HEAD commit: 6feb57c2fd7c Merge tag 'kbuild-v6.2' of git://git.kernel.o.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=14dd1bbf880000 kernel config: https://syzkaller.appspot.com/x/.config?x=d3fb546de56fbf8d dashboard link: https://syzkaller.appspot.com/bug?extid=c1d0a03d305972dbbe14 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15fbcbd0480000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/81556e491789/disk-6feb57c2.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/065c943ec9de/vmlinux-6feb57c2.xz kernel image: https://storage.googleapis.com/syzbot-assets/66e98c522c1f/bzImage-6feb57c2.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c1d0a03d305972dbbe14@syzkaller.appspotmail.com list_add corruption. next->prev should be prev (ffffffff8e7c1b40), but was 054e024500005c15. (next=ffff8880286ef000). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:29! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 23580 Comm: syz-executor.3 Not tainted 6.1.0-syzkaller-13822-g6feb57c2fd7c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:__list_add_valid+0xdd/0x100 lib/list_debug.c:27 Code: b9 45 6b 06 0f 0b 48 c7 c7 20 c2 4b 8b 31 c0 e8 a9 45 6b 06 0f 0b 48 c7 c7 80 c2 4b 8b 4c 89 e6 4c 89 f1 31 c0 e8 93 45 6b 06 <0f> 0b 48 c7 c7 00 c3 4b 8b 4c 89 f6 4c 89 e1 31 c0 e8 7d 45 6b 06 RSP: 0018:ffffc9000bb8f560 EFLAGS: 00010246 RAX: 0000000000000075 RBX: ffff8880286ef008 RCX: 7255f226623a9300 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff110056b8600 R08: ffffffff816f2c9d R09: fffff52001771e65 R10: fffff52001771e65 R11: 1ffff92001771e64 R12: ffffffff8e7c1b40 R13: dffffc0000000000 R14: ffff8880286ef000 R15: ffff88802b5c3000 FS: 00007fa56cb80700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9560bfe718 CR3: 0000000078b31000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __list_add include/linux/list.h:69 [inline] list_add include/linux/list.h:88 [inline] nfc_llcp_register_device+0x6c4/0x800 net/nfc/llcp_core.c:1603 nfc_register_device+0x68/0x320 net/nfc/core.c:1124 nci_register_device+0x7b5/0x8f0 net/nfc/nci/core.c:1257 virtual_ncidev_open+0x138/0x1b0 drivers/nfc/virtual_ncidev.c:148 misc_open+0x346/0x3c0 drivers/char/misc.c:165 chrdev_open+0x53b/0x5f0 fs/char_dev.c:414 do_dentry_open+0x85f/0x11b0 fs/open.c:882 do_open fs/namei.c:3557 [inline] path_openat+0x25ba/0x2dd0 fs/namei.c:3714 do_filp_open+0x264/0x4f0 fs/namei.c:3741 do_sys_openat2+0x124/0x4e0 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __x64_sys_openat+0x243/0x290 fs/open.c:1337 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa56be8c0d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa56cb80168 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fa56bfabf80 RCX: 00007fa56be8c0d9 RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c RBP: 00007fa56bee7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd25093fef R14: 00007fa56cb80300 R15: 0000000000022000 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_add_valid+0xdd/0x100 lib/list_debug.c:27 Code: b9 45 6b 06 0f 0b 48 c7 c7 20 c2 4b 8b 31 c0 e8 a9 45 6b 06 0f 0b 48 c7 c7 80 c2 4b 8b 4c 89 e6 4c 89 f1 31 c0 e8 93 45 6b 06 <0f> 0b 48 c7 c7 00 c3 4b 8b 4c 89 f6 4c 89 e1 31 c0 e8 7d 45 6b 06 RSP: 0018:ffffc9000bb8f560 EFLAGS: 00010246 RAX: 0000000000000075 RBX: ffff8880286ef008 RCX: 7255f226623a9300 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: 1ffff110056b8600 R08: ffffffff816f2c9d R09: fffff52001771e65 R10: fffff52001771e65 R11: 1ffff92001771e64 R12: ffffffff8e7c1b40 R13: dffffc0000000000 R14: ffff8880286ef000 R15: ffff88802b5c3000 FS: 00007fa56cb80700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9560bfe718 CR3: 0000000078b31000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [syzbot] BUG: corrupted list in nfc_llcp_register_device 2022-12-21 8:14 [syzbot] BUG: corrupted list in nfc_llcp_register_device syzbot @ 2023-01-23 7:58 ` syzbot 0 siblings, 0 replies; 2+ messages in thread From: syzbot @ 2023-01-23 7:58 UTC (permalink / raw) To: davem, dvyukov, edumazet, hdanton, krzysztof.kozlowski, kuba, linma, linux-kernel, netdev, pabeni, syzkaller-bugs syzbot has found a reproducer for the following issue on: HEAD commit: 2475bf0250de Merge tag 'sched_urgent_for_v6.2_rc6' of git:.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=116dd0ac480000 kernel config: https://syzkaller.appspot.com/x/.config?x=23330449ad10b66f dashboard link: https://syzkaller.appspot.com/bug?extid=c1d0a03d305972dbbe14 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: i386 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15e4a789480000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=100108fa480000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c1d0a03d305972dbbe14@syzkaller.appspotmail.com list_add corruption. prev->next should be next (ffff88802620c000), but was ffff88801d633000. (prev=ffffffff8e546e60). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:30! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 12187 Comm: syz-executor209 Not tainted 6.2.0-rc5-syzkaller-00013-g2475bf0250de #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014 RIP: 0010:__list_add_valid.cold+0x56/0x58 lib/list_debug.c:30 Code: 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 c0 bc a6 8a e8 df 2c f0 ff 0f 0b 48 89 f1 48 c7 c7 40 bc a6 8a 4c 89 e6 e8 cb 2c f0 ff <0f> 0b 4c 89 e1 48 89 ee 48 c7 c7 a0 be a6 8a e8 b7 2c f0 ff 0f 0b RSP: 0018:ffffc90026c577f0 EFLAGS: 00010282 RAX: 0000000000000075 RBX: ffff888026209000 RCX: 0000000000000000 RDX: ffff888012c20000 RSI: ffffffff816680ec RDI: fffff52004d8aef0 RBP: ffff888026209000 R08: 0000000000000075 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffff88802620c000 R13: ffff88802620c000 R14: 0000000000000000 R15: ffff88802620a140 FS: 0000000000000000(0000) GS:ffff88802c600000(0063) knlGS:0000000057a07380 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000200003c0 CR3: 000000002433d000 CR4: 0000000000150ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __list_add include/linux/list.h:69 [inline] list_add include/linux/list.h:88 [inline] nfc_llcp_register_device+0x7a8/0x9e0 net/nfc/llcp_core.c:1604 nfc_register_device+0x70/0x3b0 net/nfc/core.c:1124 nci_register_device+0x7cb/0xb50 net/nfc/nci/core.c:1257 virtual_ncidev_open+0x14f/0x230 drivers/nfc/virtual_ncidev.c:148 misc_open+0x37a/0x4a0 drivers/char/misc.c:165 chrdev_open+0x26a/0x770 fs/char_dev.c:414 do_dentry_open+0x6cc/0x13f0 fs/open.c:882 do_open fs/namei.c:3557 [inline] path_openat+0x1bbc/0x2a50 fs/namei.c:3714 do_filp_open+0x1ba/0x410 fs/namei.c:3741 do_sys_openat2+0x16d/0x4c0 fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_compat_sys_openat fs/open.c:1386 [inline] __se_compat_sys_openat fs/open.c:1384 [inline] __ia32_compat_sys_openat+0x143/0x1f0 fs/open.c:1384 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7e6f549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000ff98601c EFLAGS: 00000292 ORIG_RAX: 0000000000000127 RAX: ffffffffffffffda RBX: 00000000ffffff9c RCX: 0000000020000080 RDX: 0000000000000002 RSI: 0000000000000000 RDI: 00000000ffffffff RBP: 0000000000008933 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_add_valid.cold+0x56/0x58 lib/list_debug.c:30 Code: 0b 48 89 f2 4c 89 e1 48 89 ee 48 c7 c7 c0 bc a6 8a e8 df 2c f0 ff 0f 0b 48 89 f1 48 c7 c7 40 bc a6 8a 4c 89 e6 e8 cb 2c f0 ff <0f> 0b 4c 89 e1 48 89 ee 48 c7 c7 a0 be a6 8a e8 b7 2c f0 ff 0f 0b RSP: 0018:ffffc90026c577f0 EFLAGS: 00010282 RAX: 0000000000000075 RBX: ffff888026209000 RCX: 0000000000000000 RDX: ffff888012c20000 RSI: ffffffff816680ec RDI: fffff52004d8aef0 RBP: ffff888026209000 R08: 0000000000000075 R09: 0000000000000000 R10: 0000000080000000 R11: 0000000000000000 R12: ffff88802620c000 R13: ffff88802620c000 R14: 0000000000000000 R15: ffff88802620a140 FS: 0000000000000000(0000) GS:ffff88802c600000(0063) knlGS:0000000057a07380 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000200003c0 CR3: 000000002433d000 CR4: 0000000000150ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 03 74 c0 01 add 0x1(%rax,%rax,8),%esi 4: 10 05 03 74 b8 01 adc %al,0x1b87403(%rip) # 0x1b8740d a: 10 06 adc %al,(%rsi) c: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 10: 10 07 adc %al,(%rdi) 12: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi 16: 10 08 adc %cl,(%rax) 18: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1c: 00 00 add %al,(%rax) 1e: 00 00 add %al,(%rax) 20: 00 51 52 add %dl,0x52(%rcx) 23: 55 push %rbp 24: 89 e5 mov %esp,%ebp 26: 0f 34 sysenter 28: cd 80 int $0x80 * 2a: 5d pop %rbp <-- trapping instruction 2b: 5a pop %rdx 2c: 59 pop %rcx 2d: c3 retq 2e: 90 nop 2f: 90 nop 30: 90 nop 31: 90 nop 32: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 39: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi ^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2023-01-23 7:59 UTC | newest] Thread overview: 2+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2022-12-21 8:14 [syzbot] BUG: corrupted list in nfc_llcp_register_device syzbot 2023-01-23 7:58 ` syzbot
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