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🐞 Open [704] 🐞 Fixed [181] 🐞 Invalid [624] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-4.19 | KASAN: slab-out-of-bounds Read in macvlan_broadcast | C | done | 10 | 1114d | 1119d | 1/1 | fixed on 2020/02/10 15:38 | |
upstream | KASAN: slab-out-of-bounds Read in macvlan_broadcast | C | done | 10 | 1117d | 1119d | 16/24 | fixed on 2020/02/18 14:31 |
IPv6: ADDRCONF(NETDEV_UP): macvlan0: link is not ready IPv6: ADDRCONF(NETDEV_UP): macvlan1: link is not ready protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 ================================================================== BUG: KASAN: slab-out-of-bounds in __get_unaligned_cpu32 include/linux/unaligned/packed_struct.h:19 [inline] BUG: KASAN: slab-out-of-bounds in mc_hash drivers/net/macvlan.c:255 [inline] BUG: KASAN: slab-out-of-bounds in macvlan_broadcast+0x4b9/0x5c0 drivers/net/macvlan.c:281 Read of size 4 at addr ffff88808b535d41 by task syz-executor815/7096 CPU: 1 PID: 7096 Comm: syz-executor815 Not tainted 4.14.162-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+0x142/0x197 lib/dump_stack.c:58 print_address_description.cold+0x7c/0x1dc mm/kasan/report.c:252 kasan_report_error mm/kasan/report.c:351 [inline] kasan_report mm/kasan/report.c:409 [inline] kasan_report.cold+0xa9/0x2af mm/kasan/report.c:393 __asan_report_load_n_noabort+0xf/0x20 mm/kasan/report.c:440 __get_unaligned_cpu32 include/linux/unaligned/packed_struct.h:19 [inline] mc_hash drivers/net/macvlan.c:255 [inline] macvlan_broadcast+0x4b9/0x5c0 drivers/net/macvlan.c:281 macvlan_queue_xmit drivers/net/macvlan.c:522 [inline] macvlan_start_xmit+0x56b/0x72d drivers/net/macvlan.c:565 __netdev_start_xmit include/linux/netdevice.h:4038 [inline] netdev_start_xmit include/linux/netdevice.h:4047 [inline] packet_direct_xmit+0x431/0x640 net/packet/af_packet.c:269 packet_snd net/packet/af_packet.c:2994 [inline] packet_sendmsg+0x1dd4/0x5a60 net/packet/af_packet.c:3019 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xce/0x110 net/socket.c:656 SYSC_sendto+0x206/0x310 net/socket.c:1763 SyS_sendto+0x40/0x50 net/socket.c:1731 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x4423d9 RSP: 002b:00007ffc4948a4d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004423d9 RDX: 000000000000000e RSI: 0000000020000080 RDI: 0000000000000003 RBP: 00007ffc4948a500 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000403910 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 4144: save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59 save_stack+0x45/0xd0 mm/kasan/kasan.c:447 set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc mm/kasan/kasan.c:551 [inline] kasan_kmalloc+0xce/0xf0 mm/kasan/kasan.c:529 kasan_slab_alloc+0xf/0x20 mm/kasan/kasan.c:489 kmem_cache_alloc+0x12e/0x780 mm/slab.c:3552 getname_flags fs/namei.c:138 [inline] getname_flags+0xcb/0x580 fs/namei.c:128 getname+0x1a/0x20 fs/namei.c:209 do_sys_open+0x1e7/0x430 fs/open.c:1078 SYSC_open fs/open.c:1102 [inline] SyS_open+0x2d/0x40 fs/open.c:1097 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 Freed by task 4144: save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59 save_stack+0x45/0xd0 mm/kasan/kasan.c:447 set_track mm/kasan/kasan.c:459 [inline] kasan_slab_free+0x75/0xc0 mm/kasan/kasan.c:524 __cache_free mm/slab.c:3496 [inline] kmem_cache_free+0x83/0x2b0 mm/slab.c:3758 putname+0xdb/0x120 fs/namei.c:259 do_sys_open+0x21c/0x430 fs/open.c:1093 SYSC_open fs/open.c:1102 [inline] SyS_open+0x2d/0x40 fs/open.c:1097 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 The buggy address belongs to the object at ffff88808b5349c0 which belongs to the cache names_cache of size 4096 The buggy address is located 897 bytes to the right of 4096-byte region [ffff88808b5349c0, ffff88808b5359c0) The buggy address belongs to the page: page:ffffea00022d4d00 count:1 mapcount:0 mapping:ffff88808b5349c0 index:0x0 compound_mapcount: 0 flags: 0xfffe0000008100(slab|head) raw: 00fffe0000008100 ffff88808b5349c0 0000000000000000 0000000100000001 raw: ffffea000209cfa0 ffffea00022d20a0 ffff8880aa9e9cc0 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88808b535c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88808b535c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff88808b535d00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff88808b535d80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff88808b535e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================
Manager | Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
ci2-linux-4-14 | 2020/01/08 12:29 | linux-4.14.y | 84f5ad468100 | ddc3e859 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2020/01/08 01:28 | linux-4.14.y | 84f5ad468100 | 6738e0b3 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2020/01/07 20:00 | linux-4.14.y | 84f5ad468100 | 1bcd407e | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2020/01/07 08:19 | linux-4.14.y | 84f5ad468100 | 53430d97 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2020/01/06 14:13 | linux-4.14.y | 84f5ad468100 | 438e1227 | .config | console log | report | syz | C | |||
ci2-linux-4-14 | 2020/01/11 08:33 | linux-4.14.y | b0cdffaa546e | 4c04afaa | .config | console log | report |