61 2021-12-10 16:37:10 +0000 TCP sock leaks with BBR internal pacing 2022-05-26 10:03:53 +0000 1 1 5 ANCK ANCK 4.19 Dev net unspecified x86_64 Linux RESOLVED FIXED CVE P1-Urgent S2-major --- 1 shile.zhang cambda cambda caspar dust.li shile.zhang shiyaobin.syb quentin.sqm oldest_to_newest 4107 3 cambda 2022-05-20 14:36:28 +0000 On my Linux server, I found abnormal memory usage and very large TCP in-use socket statistics in /proc/net/sockstat. The Linux version is 4.19 and the TCP congestion control algorithm is BBR without fq. The 'ss' command didn't list so many sockets, so it could be socket leak. 4108 4 shiyaobin.syb 2022-05-20 14:51:11 +0000 confirm from upstream: - https://lore.kernel.org/all/CANn89i+7-wE4xr5D9DpH+N-xkL1SB8oVghCKgz+https://lore.kernel.org/netdev/76fb2bc3-9f9c-cf5c-02f5-3a5da2312ad1@gmail.com/T/ - https://lore.kernel.org/all/20200602080425.93712-1-kerneljasonxing@gmail.com/ fix in Upstream: https://github.com/torvalds/linux/commit/0a70f118475e037732557796accd0878a00fc25a fxi in Anolis: https://gitee.com/anolis/cloud-kernel/commit/bed537da691b 4109 5 shile.zhang 2022-05-20 14:57:30 +0000 This bug has been fixed in ANCK-4.19 release 4.19.91-25.7, as following commit: https://gitee.com/anolis/cloud-kernel/commit/bed537da691b