Revision 8cd9da85d2bd87ce889043e7b1735723dd10eb89 authored by Frederic Weisbecker on 13 September 2021, 14:53:32 UTC, committed by Thomas Gleixner on 23 September 2021, 09:53:51 UTC
Resetting/stopping an itimer eventually leads to it being reprogrammed
with an actual "0" value. As a result the itimer expires on the next
tick, triggering an unexpected signal.
To fix this, make sure that
struct signal_struct::it[CPUCLOCK_PROF/VIRT]::expires is set to 0 when
setitimer() passes a 0 it_value, indicating that the timer must stop.
Fixes: 406dd42bd1ba ("posix-cpu-timers: Force next expiration recalc after itimer reset")
Reported-by: Victor Stinner <vstinner@redhat.com>
Reported-by: Chris Hixon <linux-kernel-bugs@hixontech.com>
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210913145332.232023-1-frederic@kernel.org
1 parent e4e737b
| File | Mode | Size |
|---|---|---|
| ila | ||
| netfilter | ||
| Kconfig | -rw-r--r-- | 9.7 KB |
| Makefile | -rw-r--r-- | 1.9 KB |
| addrconf.c | -rw-r--r-- | 177.3 KB |
| addrconf_core.c | -rw-r--r-- | 8.3 KB |
| addrlabel.c | -rw-r--r-- | 15.6 KB |
| af_inet6.c | -rw-r--r-- | 31.0 KB |
| ah6.c | -rw-r--r-- | 17.8 KB |
| anycast.c | -rw-r--r-- | 12.9 KB |
| calipso.c | -rw-r--r-- | 37.8 KB |
| datagram.c | -rw-r--r-- | 25.2 KB |
| esp6.c | -rw-r--r-- | 28.7 KB |
| esp6_offload.c | -rw-r--r-- | 9.3 KB |
| exthdrs.c | -rw-r--r-- | 32.7 KB |
| exthdrs_core.c | -rw-r--r-- | 7.5 KB |
| exthdrs_offload.c | -rw-r--r-- | 711 bytes |
| fib6_notifier.c | -rw-r--r-- | 1.5 KB |
| fib6_rules.c | -rw-r--r-- | 12.1 KB |
| fou6.c | -rw-r--r-- | 5.1 KB |
| icmp.c | -rw-r--r-- | 28.9 KB |
| inet6_connection_sock.c | -rw-r--r-- | 4.2 KB |
| inet6_hashtables.c | -rw-r--r-- | 9.2 KB |
| ioam6.c | -rw-r--r-- | 20.2 KB |
| ioam6_iptunnel.c | -rw-r--r-- | 6.5 KB |
| ip6_checksum.c | -rw-r--r-- | 3.5 KB |
| ip6_fib.c | -rw-r--r-- | 62.6 KB |
| ip6_flowlabel.c | -rw-r--r-- | 20.4 KB |
| ip6_gre.c | -rw-r--r-- | 58.1 KB |
| ip6_icmp.c | -rw-r--r-- | 2.0 KB |
| ip6_input.c | -rw-r--r-- | 14.0 KB |
| ip6_offload.c | -rw-r--r-- | 11.0 KB |
| ip6_offload.h | -rw-r--r-- | 302 bytes |
| ip6_output.c | -rw-r--r-- | 50.9 KB |
| ip6_tunnel.c | -rw-r--r-- | 57.7 KB |
| ip6_udp_tunnel.c | -rw-r--r-- | 2.7 KB |
| ip6_vti.c | -rw-r--r-- | 31.5 KB |
| ip6mr.c | -rw-r--r-- | 58.9 KB |
| ipcomp6.c | -rw-r--r-- | 4.9 KB |
| ipv6_sockglue.c | -rw-r--r-- | 32.0 KB |
| mcast.c | -rw-r--r-- | 75.8 KB |
| mcast_snoop.c | -rw-r--r-- | 4.4 KB |
| mip6.c | -rw-r--r-- | 10.1 KB |
| ndisc.c | -rw-r--r-- | 48.9 KB |
| netfilter.c | -rw-r--r-- | 6.6 KB |
| output_core.c | -rw-r--r-- | 3.7 KB |
| ping.c | -rw-r--r-- | 7.1 KB |
| proc.c | -rw-r--r-- | 10.4 KB |
| protocol.c | -rw-r--r-- | 1.9 KB |
| raw.c | -rw-r--r-- | 30.3 KB |
| reassembly.c | -rw-r--r-- | 14.8 KB |
| route.c | -rw-r--r-- | 165.9 KB |
| rpl.c | -rw-r--r-- | 3.2 KB |
| rpl_iptunnel.c | -rw-r--r-- | 8.0 KB |
| seg6.c | -rw-r--r-- | 10.0 KB |
| seg6_hmac.c | -rw-r--r-- | 9.5 KB |
| seg6_iptunnel.c | -rw-r--r-- | 13.6 KB |
| seg6_local.c | -rw-r--r-- | 46.8 KB |
| sit.c | -rw-r--r-- | 47.1 KB |
| syncookies.c | -rw-r--r-- | 7.4 KB |
| sysctl_net_ipv6.c | -rw-r--r-- | 8.8 KB |
| tcp_ipv6.c | -rw-r--r-- | 58.3 KB |
| tcpv6_offload.c | -rw-r--r-- | 1.9 KB |
| tunnel6.c | -rw-r--r-- | 7.0 KB |
| udp.c | -rw-r--r-- | 44.9 KB |
| udp_impl.h | -rw-r--r-- | 1.0 KB |
| udp_offload.c | -rw-r--r-- | 5.5 KB |
| udplite.c | -rw-r--r-- | 2.9 KB |
| xfrm6_input.c | -rw-r--r-- | 6.0 KB |
| xfrm6_output.c | -rw-r--r-- | 2.3 KB |
| xfrm6_policy.c | -rw-r--r-- | 6.7 KB |
| xfrm6_protocol.c | -rw-r--r-- | 7.4 KB |
| xfrm6_state.c | -rw-r--r-- | 699 bytes |
| xfrm6_tunnel.c | -rw-r--r-- | 9.7 KB |
Computing file changes ...
