From: Jason Xing kernelxing@tencent.com

mainline inclusion from mainline-v6.8 commit 806f462ba9029d41aadf8ec93f2f99c5305deada category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9Q94Q CVE: CVE-2024-27425

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...

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We need to protect the reader reading the sysctl value because the value can be changed concurrently.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Jason Xing kernelxing@tencent.com Signed-off-by: Paolo Abeni pabeni@redhat.com Signed-off-by: liwei liwei728@huawei.com --- net/netrom/af_netrom.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index 33fb5c1a5f49..bcefb4360591 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -455,7 +455,7 @@ static int nr_create(struct net *net, struct socket *sock, int protocol, nr->t1 = msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_timeout)); nr->t2 = - msecs_to_jiffies(sysctl_netrom_transport_acknowledge_delay); + msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_acknowledge_delay)); nr->n2 = msecs_to_jiffies(READ_ONCE(sysctl_netrom_transport_maximum_tries)); nr->t4 =