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🐞 Open [566] 🐞 Fixed [180] 🐞 Invalid [586] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-4.19 | KASAN: use-after-free Read in vlan_dev_get_iflink | C | error | 17 | 41d | 804d | 0/1 | upstream: reported C repro on 2020/04/13 08:02 | |
upstream | KASAN: use-after-free Read in vlan_dev_get_iflink | C | error | error | 13 | 533d | 703d | 0/22 | upstream: reported C repro on 2020/07/23 18:12 |
================================================================== BUG: KASAN: use-after-free in vlan_dev_get_iflink+0x5f/0x70 net/8021q/vlan_dev.c:769 Read of size 4 at addr ffff8880905e0488 by task syz-executor582/6951 CPU: 0 PID: 6951 Comm: syz-executor582 Not tainted 4.14.192-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x283 lib/dump_stack.c:58 print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:252 kasan_report_error.cold+0x8a/0x194 mm/kasan/report.c:351 kasan_report mm/kasan/report.c:409 [inline] __asan_report_load4_noabort+0x68/0x70 mm/kasan/report.c:429 vlan_dev_get_iflink+0x5f/0x70 net/8021q/vlan_dev.c:769 dev_get_iflink+0x73/0xe0 net/core/dev.c:691 rfc2863_policy+0x163/0x1b0 net/core/link_watch.c:43 linkwatch_do_dev+0x1b/0xf0 net/core/link_watch.c:157 linkwatch_forget_dev+0x15c/0x1f0 net/core/link_watch.c:223 netdev_wait_allrefs net/core/dev.c:7837 [inline] netdev_run_todo+0x284/0xad0 net/core/dev.c:7938 rtnl_unlock net/core/rtnetlink.c:106 [inline] rtnetlink_rcv_msg+0x3cb/0xb10 net/core/rtnetlink.c:4318 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2433 netlink_unicast_kernel net/netlink/af_netlink.c:1287 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1313 netlink_sendmsg+0x62e/0xb80 net/netlink/af_netlink.c:1878 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x446d79 RSP: 002b:00007efc89777d98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000006dbc78 RCX: 0000000000446d79 RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 00000000006dbc70 R08: 0000000000000018 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000246 R12: 00000000006dbc7c R13: 0000000000040000 R14: 0000000000000000 R15: 0705001000000048 Allocated by task 6917: save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551 __do_kmalloc_node mm/slab.c:3682 [inline] __kmalloc_node+0x4c/0x70 mm/slab.c:3689 kmalloc_node include/linux/slab.h:530 [inline] kvmalloc_node+0x46/0xd0 mm/util.c:397 kvmalloc include/linux/mm.h:531 [inline] kvzalloc include/linux/mm.h:539 [inline] alloc_netdev_mqs+0x76/0xb70 net/core/dev.c:8103 rtnl_create_link+0x1ab/0x890 net/core/rtnetlink.c:2460 rtnl_newlink+0xe86/0x1830 net/core/rtnetlink.c:2718 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4316 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2433 netlink_unicast_kernel net/netlink/af_netlink.c:1287 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1313 netlink_sendmsg+0x62e/0xb80 net/netlink/af_netlink.c:1878 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb Freed by task 6917: save_stack mm/kasan/kasan.c:447 [inline] set_track mm/kasan/kasan.c:459 [inline] kasan_slab_free+0xc3/0x1a0 mm/kasan/kasan.c:524 __cache_free mm/slab.c:3496 [inline] kfree+0xc9/0x250 mm/slab.c:3815 kvfree+0x45/0x50 mm/util.c:416 device_release+0x15f/0x1a0 drivers/base/core.c:833 kobject_cleanup lib/kobject.c:646 [inline] kobject_release lib/kobject.c:675 [inline] kref_put include/linux/kref.h:70 [inline] kobject_put+0x1f3/0x2d0 lib/kobject.c:692 netdev_run_todo+0x747/0xad0 net/core/dev.c:7960 rtnl_unlock net/core/rtnetlink.c:106 [inline] rtnetlink_rcv_msg+0x3cb/0xb10 net/core/rtnetlink.c:4318 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2433 netlink_unicast_kernel net/netlink/af_netlink.c:1287 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1313 netlink_sendmsg+0x62e/0xb80 net/netlink/af_netlink.c:1878 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb The buggy address belongs to the object at ffff8880905e0380 which belongs to the cache kmalloc-4096 of size 4096 The buggy address is located 264 bytes inside of 4096-byte region [ffff8880905e0380, ffff8880905e1380) The buggy address belongs to the page: page:ffffea0002417800 count:1 mapcount:0 mapping:ffff8880905e0380 index:0x0 compound_mapcount: 0 flags: 0xfffe0000008100(slab|head) raw: 00fffe0000008100 ffff8880905e0380 0000000000000000 0000000100000001 raw: ffffea000243ba20 ffffea000249a2a0 ffff88812fe52dc0 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880905e0380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880905e0400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8880905e0480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8880905e0500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880905e0580: 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 | Title |
---|---|---|---|---|---|---|---|---|---|---|---|
ci2-linux-4-14 | 2022/06/08 13:46 | linux-4.14.y | b8f3be299d51 | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2022/05/09 13:04 | linux-4.14.y | e3a56aaade89 | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2022/04/08 08:51 | linux-4.14.y | 74766a973637 | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2022/03/08 22:23 | linux-4.14.y | c9fcc1545c3b | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2022/02/06 17:05 | linux-4.14.y | b86ee2b7ae42 | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2022/01/07 16:36 | linux-4.14.y | bfdef05c8da4 | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2021/12/08 16:09 | linux-4.14.y | c01d4d1b885d | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2021/11/08 15:40 | linux-4.14.y | 0447aa205abe | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2021/10/09 15:13 | linux-4.14.y | ed99bf0e81b5 | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2021/09/09 14:47 | linux-4.14.y | f96eb53cbd76 | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2021/08/10 14:11 | linux-4.14.y | 46914f96189b | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2021/07/11 13:45 | linux-4.14.y | 4e68c9b0763f | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2021/06/11 13:19 | linux-4.14.y | 3d3abdc8ebd3 | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2021/05/12 12:48 | linux-4.14.y | 7d7d1c0ab3eb | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2021/04/12 12:20 | linux-4.14.y | 958e517f4e16 | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2021/02/27 23:44 | linux-4.14.y | 3242aa3a635c | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2020/11/24 11:36 | linux-4.14.y | 0df445b0f0da | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2020/10/25 11:11 | linux-4.14.y | 5b7a52cd2eef | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2020/09/25 10:48 | linux-4.14.y | ca87c8281190 | 0487ea6f | .config | log | report | syz | C |
Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Title |
---|---|---|---|---|---|---|---|---|---|---|---|
ci2-linux-4-14 | 2020/08/06 07:01 | linux-4.14.y | ca4f2c56d416 | 0487ea6f | .config | log | report | syz | C | ||
ci2-linux-4-14 | 2021/03/13 11:49 | linux-4.14.y | c7150cd2fa8c | 4a003785 | .config | log | report | info | KASAN: use-after-free Read in vlan_dev_get_iflink | ||
ci2-linux-4-14 | 2021/01/28 22:26 | linux-4.14.y | 2d2791fce891 | 7df34f59 | .config | log | report | info | KASAN: use-after-free Read in vlan_dev_get_iflink | ||
ci2-linux-4-14 | 2021/01/28 13:41 | linux-4.14.y | 2d2791fce891 | eefc07f2 | .config | log | report | info | KASAN: use-after-free Read in vlan_dev_get_iflink | ||
ci2-linux-4-14 | 2021/01/13 07:42 | linux-4.14.y | f79dc86058bc | 0cdd6185 | .config | log | report | info | |||
ci2-linux-4-14 | 2020/12/26 05:14 | linux-4.14.y | 3f2ecb86cb90 | 821e0b09 | .config | log | report | info | |||
ci2-linux-4-14 | 2020/12/03 20:50 | linux-4.14.y | c196b3a9c83a | 59ad4022 | .config | log | report | info | |||
ci2-linux-4-14 | 2020/12/02 19:42 | linux-4.14.y | c196b3a9c83a | eff43e99 | .config | log | report | info | |||
ci2-linux-4-14 | 2020/08/26 10:23 | linux-4.14.y | d7e78d08fa77 | 344da168 | .config | log | report | ||||
ci2-linux-4-14 | 2020/08/06 05:56 | linux-4.14.y | ca4f2c56d416 | 0487ea6f | .config | log | report | ||||
ci2-linux-4-14 | 2020/04/27 18:30 | linux-4.14.y | 050272a0423e | 0ce7569e | .config | log | report | ||||
ci2-linux-4-14 | 2020/04/25 21:55 | linux-4.14.y | 050272a0423e | b8bb8e5f | .config | log | report |