syzbot |
sign-in | mailing list | source | docs |
🐞 Open [1171] 🐞 Fixed [4292] 🐞 Invalid [9642] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
android-54 | KASAN: use-after-free Read in tipc_mcast_xmit | C | 23 | 829d | 849d | 0/2 | upstream: reported C repro on 2020/09/29 18:19 | ||
upstream | KASAN: use-after-free Read in tipc_mcast_xmit | syz | 7 | 1495d | 1502d | 12/24 | fixed on 2019/01/11 01:22 | ||
linux-4.19 | KASAN: use-after-free Read in tipc_mcast_xmit | C | done | 3 | 820d | 843d | 1/1 | fixed on 2020/11/28 11:57 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2020/10/08 03:08 | 17m | xiyou.wangcong@gmail.com | https://github.com/congwang/linux.git net | OK |
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004028a0 R13: 0000000000402930 R14: 0000000000000000 R15: 0000000000000000 tipc: Failed do clone local mcast rcv buffer ================================================================== BUG: KASAN: use-after-free in __skb_unlink include/linux/skbuff.h:2063 [inline] BUG: KASAN: use-after-free in __skb_dequeue include/linux/skbuff.h:2082 [inline] BUG: KASAN: use-after-free in __skb_queue_purge include/linux/skbuff.h:2793 [inline] BUG: KASAN: use-after-free in tipc_mcast_xmit+0xfaa/0x1170 net/tipc/bcast.c:422 Read of size 8 at addr ffff8880a73e2040 by task syz-executor657/6887 CPU: 1 PID: 6887 Comm: syz-executor657 Not tainted 5.9.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x198/0x1fd lib/dump_stack.c:118 print_address_description.constprop.0.cold+0xae/0x497 mm/kasan/report.c:383 __kasan_report mm/kasan/report.c:513 [inline] kasan_report.cold+0x1f/0x37 mm/kasan/report.c:530 __skb_unlink include/linux/skbuff.h:2063 [inline] __skb_dequeue include/linux/skbuff.h:2082 [inline] __skb_queue_purge include/linux/skbuff.h:2793 [inline] tipc_mcast_xmit+0xfaa/0x1170 net/tipc/bcast.c:422 tipc_sendmcast+0xaaf/0xef0 net/tipc/socket.c:865 __tipc_sendmsg+0xee3/0x18a0 net/tipc/socket.c:1454 tipc_sendmsg+0x4c/0x70 net/tipc/socket.c:1387 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:671 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2353 ___sys_sendmsg+0xf3/0x170 net/socket.c:2407 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2440 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x4419d9 Code: e8 cc ac 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 3b 0a fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffe0cace4c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004419d9 RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000004 RBP: 000000000000f0ee R08: 0000000000000001 R09: 0000000000402930 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000004028a0 R13: 0000000000402930 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 6887: kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48 kasan_set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xbf/0xd0 mm/kasan/common.c:461 slab_post_alloc_hook mm/slab.h:518 [inline] slab_alloc_node mm/slab.c:3254 [inline] kmem_cache_alloc_node+0x136/0x430 mm/slab.c:3574 __alloc_skb+0x71/0x550 net/core/skbuff.c:198 alloc_skb_fclone include/linux/skbuff.h:1144 [inline] tipc_buf_acquire+0x28/0xf0 net/tipc/msg.c:76 tipc_msg_build+0x6b8/0x10c0 net/tipc/msg.c:428 tipc_sendmcast+0x855/0xef0 net/tipc/socket.c:859 __tipc_sendmsg+0xee3/0x18a0 net/tipc/socket.c:1454 tipc_sendmsg+0x4c/0x70 net/tipc/socket.c:1387 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:671 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2353 ___sys_sendmsg+0xf3/0x170 net/socket.c:2407 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2440 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Freed by task 6887: kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48 kasan_set_track+0x1c/0x30 mm/kasan/common.c:56 kasan_set_free_info+0x1b/0x30 mm/kasan/generic.c:355 __kasan_slab_free+0xd8/0x120 mm/kasan/common.c:422 __cache_free mm/slab.c:3418 [inline] kmem_cache_free.part.0+0x74/0x1e0 mm/slab.c:3693 kfree_skbmem+0x166/0x1b0 net/core/skbuff.c:643 kfree_skb+0x7d/0x100 include/linux/refcount.h:270 tipc_buf_append+0x6dc/0xcf0 net/tipc/msg.c:198 tipc_msg_reassemble+0x175/0x4f0 net/tipc/msg.c:790 tipc_mcast_xmit+0x699/0x1170 net/tipc/bcast.c:386 tipc_sendmcast+0xaaf/0xef0 net/tipc/socket.c:865 __tipc_sendmsg+0xee3/0x18a0 net/tipc/socket.c:1454 tipc_sendmsg+0x4c/0x70 net/tipc/socket.c:1387 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:671 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2353 ___sys_sendmsg+0xf3/0x170 net/socket.c:2407 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2440 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 The buggy address belongs to the object at ffff8880a73e2040 which belongs to the cache skbuff_fclone_cache of size 456 The buggy address is located 0 bytes inside of 456-byte region [ffff8880a73e2040, ffff8880a73e2208) The buggy address belongs to the page: page:000000001368f319 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0xa73e2 flags: 0xfffe0000000200(slab) raw: 00fffe0000000200 ffff8880a9050f50 ffffea00028ff188 ffff8880a903dc00 raw: 0000000000000000 ffff8880a73e2040 0000000100000006 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880a73e1f00: fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc fc ffff8880a73e1f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8880a73e2000: fc fc fc fc fc fc fc fc fa fb fb fb fb fb fb fb ^ ffff8880a73e2080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880a73e2100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ==================================================================
Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
ci-upstream-bpf-kasan-gce | 2020/10/01 23:13 | bpf | a59cf619787e | 9602ddf4 | .config | console log | report | syz | C | |||
ci-upstream-bpf-kasan-gce | 2020/10/16 07:01 | bpf | 28802e7c0c99 | 6e262c73 | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/16 03:15 | bpf | 28802e7c0c99 | 6e262c73 | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/16 01:56 | bpf | 28802e7c0c99 | 6e262c73 | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/15 09:45 | bpf | 28802e7c0c99 | 63869021 | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/14 20:01 | bpf | 28802e7c0c99 | fc7735a2 | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/12 10:36 | bpf | 28802e7c0c99 | 4a77ae0b | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/12 08:38 | bpf | 28802e7c0c99 | 4a77ae0b | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/10 22:36 | bpf | 28802e7c0c99 | 4a77ae0b | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/10 00:51 | bpf | 28802e7c0c99 | d81b165e | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/07 18:53 | bpf | d82a532a6115 | 1880b4a9 | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/06 13:15 | bpf | d82a532a6115 | 1880b4a9 | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/06 13:12 | bpf | d82a532a6115 | 1880b4a9 | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/06 12:35 | bpf | d82a532a6115 | 1880b4a9 | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/05 23:06 | bpf | d82a532a6115 | 1880b4a9 | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/05 13:36 | bpf | d82a532a6115 | 5ef9c291 | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/02 11:49 | bpf | a59cf619787e | 9602ddf4 | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/02 07:33 | bpf | a59cf619787e | 9602ddf4 | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/02 00:58 | bpf | a59cf619787e | 9602ddf4 | .config | console log | report | info | ||||
ci-upstream-bpf-kasan-gce | 2020/10/01 22:56 | bpf | a59cf619787e | 9602ddf4 | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/12 17:40 | bpf-next | 376dcfe3a4e5 | d32b0bbf | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/10 14:30 | bpf-next | ac53a0d3107c | 93817d89 | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/10 11:13 | bpf-next | ac53a0d3107c | 93817d89 | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/09 04:18 | bpf-next | 1e9259eca8fd | 92390980 | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/08 02:50 | bpf-next | bf88a80a0407 | 1880b4a9 | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/07 11:35 | bpf-next | 67ed375530e2 | 1880b4a9 | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/07 01:46 | bpf-next | dca4121cdc48 | 1880b4a9 | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/07 00:58 | bpf-next | dca4121cdc48 | 1880b4a9 | .config | console log | report | info | ||||
ci-upstream-net-kasan-gce | 2020/10/06 07:54 | net-next | c2568c8c9e63 | 1880b4a9 | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/05 15:15 | bpf-next | 1028ae406999 | 5ef9c291 | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/05 14:35 | bpf-next | 1028ae406999 | 5ef9c291 | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/03 19:05 | bpf-next | 1028ae406999 | 2653fa43 | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/03 18:31 | bpf-next | 1028ae406999 | 2653fa43 | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/03 13:50 | bpf-next | 1028ae406999 | 2653fa43 | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/02 20:01 | bpf-next | 360f89874635 | 4969d6ca | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/02 10:43 | bpf-next | 6208689fb3e6 | 9602ddf4 | .config | console log | report | info | ||||
ci-upstream-bpf-next-kasan-gce | 2020/10/02 02:15 | bpf-next | 6208689fb3e6 | 9602ddf4 | .config | console log | report | info |