https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Sat, 03 Oct 2026 21:10:51 +0000 https://cve.radiocsirt.org/vuln/bell-cve-2026-74493 <p><strong>Affected:</strong> Alpaquita:23: linux-lts, Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts</p> <p><strong>Affected:</strong> Alpaquita:23: linux-lts, Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts</p> https://cve.radiocsirt.org/vuln/bell-cve-2026-74493 https://cve.radiocsirt.org/vuln/certfr-2026-avi-1090 certfr-2026-avi-1090 https://cve.radiocsirt.org/vuln/certfr-2026-avi-1090 https://cve.radiocsirt.org/vuln/euvd-2026-356398 EUVD-2026-356398 https://cve.radiocsirt.org/vuln/euvd-2026-356398 https://cve.radiocsirt.org/vuln/fkie_cve-2026-74493 <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>net/smc: fix socket use-after-free during link group termination</p> <p>__smc_lgr_terminate() drops conns_lock after finding a connection in lgr-&gt;conns_all, but before taking a reference on its socket. The connection is embedded in the socket, and its registration reference protects it only while the connection remains in the tree.</p> <p>A concurrent close can unregister the connection and drop that reference, freeing the socket before the termination worker reaches sock_hold().</p> <p>The race is reachable when close overlaps link group termination. Local stress testing reproduced the use-after-free and KASAN reported:</p> <p>BUG: KASAN: slab-use-after-free in __smc_lgr_terminate.part.0 [smc] Write of size 4 by task kworker/3:3 Workqueue: events smc_lgr_terminate_work [smc] __smc_lgr_terminate.part.0 [smc]</p> <p>The socket was allocated by smc_create(), freed through slab_free_after_rcu_debug(), and was followed by:</p> <p>refcount_t: addition on 0; use-after-free. __smc_lgr_terminate.part.0 [smc]</p> <p>Take the socket reference while conns_lock still protects the tree entry. The unregister path then cannot drop the last reference until termination has finished using the socket.</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>net/smc: fix socket use-after-free during link group termination</p> <p>__smc_lgr_terminate() drops conns_lock after finding a connection in lgr-&gt;conns_all, but before taking a reference on its socket. The connection is embedded in the socket, and its registration reference protects it only while the connection remains in the tree.</p> <p>A concurrent close can unregister the connection and drop that reference, freeing the socket before the termination worker reaches sock_hold().</p> <p>The race is reachable when close overlaps link group termination. Local stress testing reproduced the use-after-free and KASAN reported:</p> <p>BUG: KASAN: slab-use-after-free in __smc_lgr_terminate.part.0 [smc] Write of size 4 by task kworker/3:3 Workqueue: events smc_lgr_terminate_work [smc] __smc_lgr_terminate.part.0 [smc]</p> <p>The socket was allocated by smc_create(), freed through slab_free_after_rcu_debug(), and was followed by:</p> <p>refcount_t: addition on 0; use-after-free. __smc_lgr_terminate.part.0 [smc]</p> <p>Take the socket reference while conns_lock still protects the tree entry. The unregister path then cannot drop the last reference until termination has finished using the socket.</p> https://cve.radiocsirt.org/vuln/fkie_cve-2026-74493 https://cve.radiocsirt.org/vuln/ghsa-xhjj-46q7-2hx6 <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>net/smc: fix socket use-after-free during link group termination</p> <p>__smc_lgr_terminate() drops conns_lock after finding a connection in lgr-&gt;conns_all, but before taking a reference on its socket. The connection is embedded in the socket, and its registration reference protects it only while the connection remains in the tree.</p> <p>A concurrent close can unregister the connection and drop that reference, freeing the socket before the termination worker reaches sock_hold().</p> <p>The race is reachable when close overlaps link group termination. Local stress testing reproduced the use-after-free and KASAN reported:</p> <p>BUG: KASAN: slab-use-after-free in __smc_lgr_terminate.part.0 [smc] Write of size 4 by task kworker/3:3 Workqueue: events smc_lgr_terminate_work [smc] __smc_lgr_terminate.part.0 [smc]</p> <p>The socket was allocated by smc_create(), freed through slab_free_after_rcu_debug(), and was followed by:</p> <p>refcount_t: addition on 0; use-after-free. __smc_lgr_terminate.part.0 [smc]</p> <p>Take the socket reference while conns_lock still protects the tree entry. The unregister path then cannot drop the last reference until termination has finished using the socket.</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>net/smc: fix socket use-after-free during link group termination</p> <p>__smc_lgr_terminate() drops conns_lock after finding a connection in lgr-&gt;conns_all, but before taking a reference on its socket. The connection is embedded in the socket, and its registration reference protects it only while the connection remains in the tree.</p> <p>A concurrent close can unregister the connection and drop that reference, freeing the socket before the termination worker reaches sock_hold().</p> <p>The race is reachable when close overlaps link group termination. Local stress testing reproduced the use-after-free and KASAN reported:</p> <p>BUG: KASAN: slab-use-after-free in __smc_lgr_terminate.part.0 [smc] Write of size 4 by task kworker/3:3 Workqueue: events smc_lgr_terminate_work [smc] __smc_lgr_terminate.part.0 [smc]</p> <p>The socket was allocated by smc_create(), freed through slab_free_after_rcu_debug(), and was followed by:</p> <p>refcount_t: addition on 0; use-after-free. __smc_lgr_terminate.part.0 [smc]</p> <p>Take the socket reference while conns_lock still protects the tree entry. The unregister path then cannot drop the last reference until termination has finished using the socket.</p> https://cve.radiocsirt.org/vuln/ghsa-xhjj-46q7-2hx6 https://cve.radiocsirt.org/vuln/msrc_cve-2026-74493 msrc_CVE-2026-74493 https://cve.radiocsirt.org/vuln/msrc_cve-2026-74493 https://cve.radiocsirt.org/vuln/ubuntu-cve-2026-74493 <p><strong>Affected:</strong> Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:18.04:LTS: linux-aws-5.0, Ubuntu:18.04:LTS: linux-aws-5.3, Ubuntu:18.04:LTS: linux-azure, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp, Ubuntu:18.04:LTS: linux-gcp-5.3, Ubuntu:18.04:LTS: linux-gke-4.15, Ubuntu:18.04:LTS: linux-gke-5.4 and 193 more</p> <p>In the Linux kernel, the following vulnerability has been resolved: net/smc: fix socket use-after-free during link group termination __smc_lgr_terminate() drops conns_lock after finding a connection in lgr-&gt;conns_all, but before taking a reference on its socket. The connection is embedded in the socket, and its registration reference protects it only while the connection remains in the tree. A concurrent close can unregister the connection and drop that reference, freeing the socket before the termination worker reaches sock_hold(). The race is reachable when close overlaps link group termination. Local stress testing reproduced the use-after-free and KASAN reported: BUG: KASAN: slab-use-after-free in __smc_lgr_terminate.part.0 [smc] Write of size 4 by task kworker/3:3 Workqueue: events smc_lgr_terminate_work [smc] __smc_lgr_terminate.part.0 [smc] The socket was allocated by smc_create(), freed through slab_free_after_rcu_debug(), and was followed by: refcount_t: addition on 0; use-after-free. __smc_lgr_terminate.part.0 [smc] Take the socket reference while conns_lock still protects the tree entry. The unregister path then cannot drop the last reference until termination has finished using the socket.</p> <p><strong>Affected:</strong> Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:18.04:LTS: linux-aws-5.0, Ubuntu:18.04:LTS: linux-aws-5.3, Ubuntu:18.04:LTS: linux-azure, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp, Ubuntu:18.04:LTS: linux-gcp-5.3, Ubuntu:18.04:LTS: linux-gke-4.15, Ubuntu:18.04:LTS: linux-gke-5.4 and 193 more</p> <p>In the Linux kernel, the following vulnerability has been resolved: net/smc: fix socket use-after-free during link group termination __smc_lgr_terminate() drops conns_lock after finding a connection in lgr-&gt;conns_all, but before taking a reference on its socket. The connection is embedded in the socket, and its registration reference protects it only while the connection remains in the tree. A concurrent close can unregister the connection and drop that reference, freeing the socket before the termination worker reaches sock_hold(). The race is reachable when close overlaps link group termination. Local stress testing reproduced the use-after-free and KASAN reported: BUG: KASAN: slab-use-after-free in __smc_lgr_terminate.part.0 [smc] Write of size 4 by task kworker/3:3 Workqueue: events smc_lgr_terminate_work [smc] __smc_lgr_terminate.part.0 [smc] The socket was allocated by smc_create(), freed through slab_free_after_rcu_debug(), and was followed by: refcount_t: addition on 0; use-after-free. __smc_lgr_terminate.part.0 [smc] Take the socket reference while conns_lock still protects the tree entry. The unregister path then cannot drop the last reference until termination has finished using the socket.</p> https://cve.radiocsirt.org/vuln/ubuntu-cve-2026-74493 https://cve.radiocsirt.org/vuln/wid-sec-w-2026-2852 <p>Ein Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um root Rechte zu erlangen, um einen Denial of Service herbeizuführen oder einen nicht näher spezifizierten Angriff durchzuführen.</p> <p>Ein Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um root Rechte zu erlangen, um einen Denial of Service herbeizuführen oder einen nicht näher spezifizierten Angriff durchzuführen.</p> https://cve.radiocsirt.org/vuln/wid-sec-w-2026-2852