Title | Replies (including bot) | Last reply |
---|---|---|
[Patch net] net_sched: fix error path in red_init() | 3 (3) | 2020/08/28 14:17 |
WARNING: refcount bug in qdisc_put (2) | 0 (1) | 2020/08/26 14:27 |
syzbot |
sign-in | mailing list | source | docs |
Title | Replies (including bot) | Last reply |
---|---|---|
[Patch net] net_sched: fix error path in red_init() | 3 (3) | 2020/08/28 14:17 |
WARNING: refcount bug in qdisc_put (2) | 0 (1) | 2020/08/26 14:27 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
upstream | WARNING: refcount bug in qdisc_put net | 5 | 2262d | 2263d | 11/28 | fixed on 2018/11/12 21:25 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2020/08/26 22:38 | 16m | xiyou.wangcong@gmail.com | https://github.com/congwang/linux.git net | OK |
------------[ cut here ]------------ refcount_t: underflow; use-after-free. WARNING: CPU: 0 PID: 6850 at lib/refcount.c:28 refcount_warn_saturate+0x1d1/0x1e0 lib/refcount.c:28 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 6850 Comm: syz-executor115 Not tainted 5.9.0-rc2-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+0x18f/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:231 __warn.cold+0x20/0x4a kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:234 exc_invalid_op+0x14/0x40 arch/x86/kernel/traps.c:254 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:536 RIP: 0010:refcount_warn_saturate+0x1d1/0x1e0 lib/refcount.c:28 Code: e9 db fe ff ff 48 89 df e8 dc ee 18 fe e9 8a fe ff ff e8 e2 d5 d8 fd 48 c7 c7 00 db 93 88 c6 05 da e4 11 07 01 e8 d1 e6 a9 fd <0f> 0b e9 af fe ff ff 0f 1f 84 00 00 00 00 00 41 56 41 55 41 54 55 RSP: 0018:ffffc90001fe74a0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff8880946b4180 RSI: ffffffff815dafc7 RDI: fffff520003fce86 RBP: 0000000000000003 R08: 0000000000000001 R09: ffff8880ae6318e7 R10: 0000000000000000 R11: 0000000035383654 R12: ffff8880a0b75864 R13: 00000000ffffffea R14: ffff88809dc40000 R15: ffff88809fa52024 refcount_sub_and_test include/linux/refcount.h:274 [inline] refcount_dec_and_test include/linux/refcount.h:294 [inline] qdisc_put+0xbe/0xe0 net/sched/sch_generic.c:984 qdisc_create+0xcd9/0x12e0 net/sched/sch_api.c:1295 tc_modify_qdisc+0x4c8/0x1990 net/sched/sch_api.c:1662 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5563 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2470 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1919 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: 0033:0x4404a9 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fff85fa9228 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004404a9 RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000004 RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401cb0 R13: 0000000000401d40 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2020/08/25 14:39 | upstream | 6a9dc5fd6170 | 344da168 | .config | console log | report | syz | C | ci-upstream-kasan-gce | |||
2020/08/25 07:52 | upstream | 6a9dc5fd6170 | 344da168 | .config | console log | report | syz | C | ci-upstream-kasan-gce-root | |||
2020/08/25 22:59 | upstream | abb3438d69fb | 344da168 | .config | console log | report | syz | C | ci-upstream-kasan-gce-386 | |||
2020/08/25 07:58 | net-old | 59ebb4305c43 | 344da168 | .config | console log | report | syz | C | ci-upstream-net-this-kasan-gce | |||
2020/08/25 07:31 | net-next-old | 85eb5bc33717 | 344da168 | .config | console log | report | syz | C | ci-upstream-net-kasan-gce | |||
2020/08/25 15:44 | linux-next | 3a00d3dfd4b6 | 344da168 | .config | console log | report | syz | C | ci-upstream-linux-next-kasan-gce-root | |||
2020/08/25 06:46 | net-next-old | 85eb5bc33717 | 344da168 | .config | console log | report | ci-upstream-net-kasan-gce |