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🐞 Open [535] 🐞 Fixed [296] 🐞 Invalid [682] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-4.14 | KASAN: use-after-free Read in vlan_dev_get_iflink | C | 12 | 18d | 792d | 0/1 | upstream: reported C repro on 2020/04/25 21:56 | ||
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 |
netlink: 24 bytes leftover after parsing attributes in process `syz-executor170'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor170'. ================================================================== BUG: KASAN: use-after-free in vlan_dev_get_iflink+0x5f/0x70 net/8021q/vlan_dev.c:771 Read of size 4 at addr ffff8880ab50e588 by task syz-executor170/8290 CPU: 1 PID: 8290 Comm: syz-executor170 Not tainted 4.19.211-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+0x1fc/0x2ef lib/dump_stack.c:118 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354 kasan_report mm/kasan/report.c:412 [inline] __asan_report_load4_noabort+0x88/0x90 mm/kasan/report.c:432 vlan_dev_get_iflink+0x5f/0x70 net/8021q/vlan_dev.c:771 dev_get_iflink+0x73/0xe0 net/core/dev.c:692 rfc2863_policy+0x1af/0x200 net/core/link_watch.c:43 linkwatch_do_dev+0x1d/0x110 net/core/link_watch.c:157 linkwatch_forget_dev+0x16a/0x200 net/core/link_watch.c:223 netdev_wait_allrefs net/core/dev.c:8892 [inline] netdev_run_todo+0x258/0xab0 net/core/dev.c:8988 rtnl_unlock net/core/rtnetlink.c:117 [inline] rtnetlink_rcv_msg+0x460/0xb80 net/core/rtnetlink.c:4783 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227 __sys_sendmsg net/socket.c:2265 [inline] __do_sys_sendmsg net/socket.c:2274 [inline] __se_sys_sendmsg net/socket.c:2272 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fee36976ea9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 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:00007fee36907318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fee369ff438 RCX: 00007fee36976ea9 RDX: 0000000000000004 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 00007fee369ff430 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000246 R12: 00007fee369cd074 R13: 00007ffe587befdf R14: 00007fee36907400 R15: 0000000000022000 Allocated by task 8274: __do_kmalloc_node mm/slab.c:3689 [inline] __kmalloc_node+0x4c/0x70 mm/slab.c:3696 kmalloc_node include/linux/slab.h:557 [inline] kvmalloc_node+0x61/0xf0 mm/util.c:423 kvmalloc include/linux/mm.h:577 [inline] kvzalloc include/linux/mm.h:585 [inline] alloc_netdev_mqs+0x97/0xd50 net/core/dev.c:9152 rtnl_create_link+0x1d4/0xa40 net/core/rtnetlink.c:2869 rtnl_newlink+0xf45/0x15c0 net/core/rtnetlink.c:3131 rtnetlink_rcv_msg+0x453/0xb80 net/core/rtnetlink.c:4782 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227 __sys_sendmsg net/socket.c:2265 [inline] __do_sys_sendmsg net/socket.c:2274 [inline] __se_sys_sendmsg net/socket.c:2272 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 8302: __cache_free mm/slab.c:3503 [inline] kfree+0xcc/0x210 mm/slab.c:3822 kvfree+0x59/0x60 mm/util.c:452 device_release+0x76/0x210 drivers/base/core.c:1076 kobject_cleanup lib/kobject.c:662 [inline] kobject_release lib/kobject.c:691 [inline] kref_put include/linux/kref.h:70 [inline] kobject_put+0x28b/0x5d0 lib/kobject.c:708 netdev_run_todo+0x77f/0xab0 net/core/dev.c:9011 rtnl_unlock net/core/rtnetlink.c:117 [inline] rtnetlink_rcv_msg+0x460/0xb80 net/core/rtnetlink.c:4783 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227 __sys_sendmsg net/socket.c:2265 [inline] __do_sys_sendmsg net/socket.c:2274 [inline] __se_sys_sendmsg net/socket.c:2272 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff8880ab50e480 which belongs to the cache kmalloc-4096 of size 4096 The buggy address is located 264 bytes inside of 4096-byte region [ffff8880ab50e480, ffff8880ab50f480) The buggy address belongs to the page: page:ffffea0002ad4380 count:1 mapcount:0 mapping:ffff88813bff0dc0 index:0x0 compound_mapcount: 0 flags: 0xfff00000008100(slab|head) raw: 00fff00000008100 ffffea00024d4a08 ffffea0002ad4888 ffff88813bff0dc0 raw: 0000000000000000 ffff8880ab50e480 0000000100000001 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880ab50e480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880ab50e500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff8880ab50e580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8880ab50e600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880ab50e680: 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-4-19 | 2022/05/17 02:56 | linux-4.19.y | 3f8a27f9e27b | 744a39e2 | .config | log | report | syz | C | KASAN: use-after-free Read in vlan_dev_get_iflink | |
ci2-linux-4-19 | 2020/08/08 10:01 | linux-4.19.y | 961f830af065 | ff51e522 | .config | log | report | syz | C | ||
ci2-linux-4-19 | 2020/07/21 01:22 | linux-4.19.y | 17a87580a885 | 8caeeeb7 | .config | log | report | syz | C | ||
ci2-linux-4-19 | 2022/05/16 21:21 | linux-4.19.y | 3f8a27f9e27b | 744a39e2 | .config | log | report | info | KASAN: use-after-free Read in vlan_dev_get_iflink | ||
ci2-linux-4-19 | 2022/02/19 13:52 | linux-4.19.y | 3f8a27f9e27b | 3cd800e4 | .config | log | report | info | KASAN: use-after-free Read in vlan_dev_get_iflink | ||
ci2-linux-4-19 | 2021/08/16 05:00 | linux-4.19.y | 59456c9cc40c | 2489ab88 | .config | log | report | info | KASAN: use-after-free Read in vlan_dev_get_iflink | ||
ci2-linux-4-19 | 2021/07/14 14:22 | linux-4.19.y | fcfbdfe9626e | 94e0b707 | .config | log | report | info | KASAN: use-after-free Read in vlan_dev_get_iflink | ||
ci2-linux-4-19 | 2021/04/23 10:57 | linux-4.19.y | 2965db2e004c | 590921a5 | .config | log | report | info | KASAN: use-after-free Read in vlan_dev_get_iflink | ||
ci2-linux-4-19 | 2021/03/05 08:53 | linux-4.19.y | dfb571610ba3 | 9d751681 | .config | log | report | info | KASAN: use-after-free Read in vlan_dev_get_iflink | ||
ci2-linux-4-19 | 2021/01/16 07:37 | linux-4.19.y | 675cc038067f | 65a7a854 | .config | log | report | info | |||
ci2-linux-4-19 | 2020/10/31 19:01 | linux-4.19.y | f5d8eef067ac | 8bc4594f | .config | log | report | info | |||
ci2-linux-4-19 | 2020/09/25 15:18 | linux-4.19.y | d09b80172c22 | 4a006f63 | .config | log | report | info | |||
ci2-linux-4-19 | 2020/08/25 20:22 | linux-4.19.y | d18b78abc0c6 | 344da168 | .config | log | report | ||||
ci2-linux-4-19 | 2020/08/24 15:48 | linux-4.19.y | d18b78abc0c6 | 67b599d1 | .config | log | report | ||||
ci2-linux-4-19 | 2020/08/20 01:29 | linux-4.19.y | a834132bd465 | ed282a3a | .config | log | report | ||||
ci2-linux-4-19 | 2020/07/21 00:06 | linux-4.19.y | 17a87580a885 | 8caeeeb7 | .config | log | report | ||||
ci2-linux-4-19 | 2020/04/13 08:01 | linux-4.19.y | dda0e2920330 | 17a986e5 | .config | log | report |