]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
net/smc: fix restoring of fallback changes
authorKarsten Graul <kgraul@linux.ibm.com>
Sat, 18 Jul 2020 13:06:18 +0000 (15:06 +0200)
committerDavid S. Miller <davem@davemloft.net>
Sun, 19 Jul 2020 22:30:23 +0000 (15:30 -0700)
commit1ad24058335427d046b2e5666bcd15a62ad9e242
treed5011e7cb053277f387c64a1c9d1425f96327b5a
parentfd7f3a746582e8b17c48d4d8087d38c91f59ba67
net/smc: fix restoring of fallback changes

When a listen socket is closed then all non-accepted sockets in its
accept queue are to be released. Inside __smc_release() the helper
smc_restore_fallback_changes() restores the changes done to the socket
without to check if the clcsocket has a file set. This can result in
a crash. Fix this by checking the file pointer first.

Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Fixes: f536dffc0b79 ("net/smc: fix closing of fallback SMC sockets")
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/smc/af_smc.c