KASAN: null-ptr-deref in llcp_sock

Created	Duration	User	Patch	Repo	Result
2023/01/24 12:32	10m	retest repro		linux-4.14.y	report log
2022/09/07 05:27	9m	retest repro		linux-4.14.y	report log

Created

Duration

User

Patch

Repo

Result

2023/01/24 12:32

10m

retest repro

linux-4.14.y

report log

2022/09/07 05:27

retest repro

linux-4.14.y

report log


Created	Duration	User	Repo	Result
2020/07/11 04:24	30m	bisect fix	linux-4.14.y	OK (2) job log
2020/06/11 04:00	24m	bisect fix	linux-4.14.y	OK (0) job log log
2020/05/12 03:35	24m	bisect fix	linux-4.14.y	OK (0) job log log
2020/04/12 03:12	23m	bisect fix	linux-4.14.y	OK (0) job log log
2020/03/13 02:45	26m	bisect fix	linux-4.14.y	OK (0) job log log
2020/02/12 01:41	23m	bisect fix	linux-4.14.y	OK (0) job log log
2020/01/13 01:17	23m	bisect fix	linux-4.14.y	OK (0) job log log
2019/12/14 00:53	24m	bisect fix	linux-4.14.y	OK (0) job log log

random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) random: sshd: uninitialized urandom read (32 bytes read) audit: type=1400 audit(1572408311.438:36): avc: denied { map } for pid=6826 comm="syz-executor496" path="/root/syz-executor496605180" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 ================================================================== BUG: KASAN: null-ptr-deref in memcpy include/linux/string.h:347 [inline] BUG: KASAN: null-ptr-deref in llcp_sock_getname+0x38f/0x4a0 net/nfc/llcp_sock.c:532 BUG: unable to handle kernel Read of size 43 at addr (null) by task syz-executor496/6833 NULL pointer dereference CPU: 1 PID: 6833 Comm: syz-executor496 Not tainted 4.14.151 #0 at (null) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 IP: memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54 Call Trace: PGD 93d0f067 __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x138/0x197 lib/dump_stack.c:53 P4D 93d0f067 PUD 9293b067 kasan_report_error mm/kasan/report.c:349 [inline] kasan_report mm/kasan/report.c:409 [inline] kasan_report.cold+0x127/0x2af mm/kasan/report.c:393 PMD 0 check_memory_region_inline mm/kasan/kasan.c:260 [inline] check_memory_region+0x123/0x190 mm/kasan/kasan.c:267 memcpy+0x24/0x50 mm/kasan/kasan.c:302 Oops: 0000 [#1] PREEMPT SMP KASAN memcpy include/linux/string.h:347 [inline] llcp_sock_getname+0x38f/0x4a0 net/nfc/llcp_sock.c:532 Modules linked in: SYSC_getpeername+0x120/0x270 net/socket.c:1715 CPU: 0 PID: 6837 Comm: syz-executor496 Not tainted 4.14.151 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8880a9a900c0 task.stack: ffff8880a8728000 RIP: 0010:memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54 RSP: 0018:ffff8880a872fd20 EFLAGS: 00010246 SyS_getpeername+0x24/0x30 net/socket.c:1699 RAX: ffff8880a872fe0a RBX: ffff8880a872fdf8 RCX: 000000000000002b RDX: 000000000000002b RSI: 0000000000000000 RDI: ffff8880a872fe0a do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 RBP: ffff8880a872fd40 R08: 1ffff110150e5fc1 R09: ffffed10150e5fc7 R10: ffffed10150e5fc6 R11: ffff8880a872fe34 R12: 000000000000002b entry_SYSCALL_64_after_hwframe+0x42/0xb7 R13: ffff8880a872fe0a R14: 0000000000000000 R15: ffffffff87069cc0 RIP: 0033:0x4412b9 FS: 0000000001ca0880(0000) GS:ffff8880aee00000(0000) knlGS:0000000000000000 RSP: 002b:00007fffabcaa758 EFLAGS: 00000246 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 ORIG_RAX: 0000000000000034 CR2: 0000000000000000 CR3: 00000000916b4000 CR4: 00000000001406f0 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 Call Trace: R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 memcpy include/linux/string.h:347 [inline] llcp_sock_getname+0x38f/0x4a0 net/nfc/llcp_sock.c:532 ================================================================== SYSC_getpeername+0x120/0x270 net/socket.c:1715 SyS_getpeername+0x24/0x30 net/socket.c:1699 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4412b9 RSP: 002b:00007fffabcaa758 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 Code: 90 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 <f3> a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 RIP: memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54 RSP: ffff8880a872fd20 CR2: 0000000000000000 BUG: unable to handle kernel NULL pointer dereference at (null) IP: memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54 PGD 99447067 P4D 99447067 PUD 967c6067 PMD 0 Oops: 0000 [#2] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 6835 Comm: syz-executor496 Tainted: G B D 4.14.151 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888091fac380 task.stack: ffff8880a7fb8000 RIP: 0010:memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54 RSP: 0018:ffff8880a7fbfd20 EFLAGS: 00010246 RAX: ffff8880a7fbfe0a RBX: ffff8880a7fbfdf8 RCX: 000000000000002b RDX: 000000000000002b RSI: 0000000000000000 RDI: ffff8880a7fbfe0a RBP: ffff8880a7fbfd40 R08: 1ffff11014ff7fc1 R09: ffffed1014ff7fc7 R10: ffffed1014ff7fc6 R11: ffff8880a7fbfe34 R12: 000000000000002b R13: ffff8880a7fbfe0a R14: 0000000000000000 R15: ffffffff87069cc0 FS: 0000000001ca0880(0000) GS:ffff8880aef00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000093326000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: memcpy include/linux/string.h:347 [inline] llcp_sock_getname+0x38f/0x4a0 net/nfc/llcp_sock.c:532 SYSC_getpeername+0x120/0x270 net/socket.c:1715 SyS_getpeername+0x24/0x30 net/socket.c:1699 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4412b9 RSP: 002b:00007fffabcaa758 EFLAGS: 00000246 ORIG_RAX: 0000000000000034 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004412b9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000402030 R13: 00000000004020c0 R14: 0000000000000000 R15: 0000000000000000 Code: 90 90 90 90 90 eb 1e 0f 1f 00 48 89 f8 48 89 d1 48 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 c3 66 0f 1f 44 00 00 48 89 f8 48 89 d1 <f3> a4 c3 0f 1f 80 00 00 00 00 48 89 f8 48 83 fa 20 72 7e 40 38 RIP: memcpy_erms+0x6/0x10 arch/x86/lib/memcpy_64.S:54 RSP: ffff8880a7fbfd20 CR2: 0000000000000000 BUG: unable to handle kernel NULL pointer dereference at (null)