UBUNTU-CVE-2026-23204

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

CVE-2026-23204 net/sched: cls_u32: use skb_header_pointer_careful()

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

CVE-2026-23204

CVE-2026-23204 affects the Linux kernel net/sched cls_u32. The root cause is that skb_header_pointer() does not fully validate negative @offset values, enabling a slab-out-of-bounds condition in u32_classify() (reported as BUG: KASAN). The fix replaces skb_header_pointer() with skb_header_pointer...

CVE-2026-23204 net/sched: cls_u32: use skb_header_pointer_careful()

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

CVE-2026-23204

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

EUVD-2026-5841

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a repro fooling u32classify: BUG: KASAN:...

CVE-2026-23175

The CVE-2026-23175 issue concerns the Linux kernel networking CPSW driver. A change that removed the RTNL lock for IPV6_ADD_MEMBERSHIP and MCAST_JOIN_GROUP triggered a problematic call trace in vlan_for_each() when cpsw_ndo_set_rx_mode() expected the RTNL lock, risking warnings and instability on...

CVE-2026-23175 net: cpsw: Execute ndo_set_rx_mode callback in a work queue

In the Linux kernel, the following vulnerability has been resolved: net: cpsw: Execute ndosetrxmode callback in a work queue Commit 1767bb2d47b7 "ipv6: mcast: Don't hold RTNL for IPV6ADDMEMBERSHIP and MCASTJOINGROUP." removed the RTNL lock for IPV6ADDMEMBERSHIP and MCASTJOINGROUP operations...

CVE-2026-23165

In the Linux kernel, the following vulnerability has been resolved: sfc: fix deadlock in RSS config read Since cited commit, core locks the netdevice's rsslock when handling ethtool -x command, so driver's implementation should not lock it again. Remove the latter...

CVE-2026-23143

In the Linux kernel, the following vulnerability has been resolved: virtionet: Fix misalignment bug in struct virtnetinfo Use the new TRAILINGOVERLAP helper to fix a misalignment bug along with the following warning: drivers/net/virtionet.c:429:46: warning: structure containing a flexible array...

CVE-2026-23165

In the Linux kernel, the following vulnerability has been resolved: sfc: fix deadlock in RSS config read Since cited commit, core locks the netdevice's rsslock when handling ethtool -x command, so driver's implementation should not lock it again. Remove the latter...

UBUNTU-CVE-2026-23165

In the Linux kernel, the following vulnerability has been resolved: sfc: fix deadlock in RSS config read Since cited commit, core locks the netdevice's rsslock when handling ethtool -x command, so driver's implementation should not lock it again. Remove the latter...

UBUNTU-CVE-2026-23143

In the Linux kernel, the following vulnerability has been resolved: virtionet: Fix misalignment bug in struct virtnetinfo Use the new TRAILINGOVERLAP helper to fix a misalignment bug along with the following warning: drivers/net/virtionet.c:429:46: warning: structure containing a flexible array...

CVE-2026-23143

In the Linux kernel, the following vulnerability has been resolved: virtionet: Fix misalignment bug in struct virtnetinfo Use the new TRAILINGOVERLAP helper to fix a misalignment bug along with the following warning: drivers/net/virtionet.c:429:46: warning: structure containing a flexible array...

CVE-2026-23169 mptcp: fix race in mptcp_pm_nl_flush_addrs_doit()

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix race in mptcppmnlflushaddrsdoit syzbot and Eulgyu Kim reported crashes in mptcppmnlgetlocalid and/or mptcppmnlisbackup Root cause is listspliceinit in mptcppmnlflushaddrsdoit which is not RCU ready. listspliceinitrcu c...

EUVD-2026-5875

In the Linux kernel, the following vulnerability has been resolved: sfc: fix deadlock in RSS config read Since cited commit, core locks the netdevice's rsslock when handling ethtool -x command, so driver's implementation should not lock it again. Remove the latter...

CVE-2026-23165

CVE-2026-23165 affects the Linux kernel sfc (Solarflare) network driver. The issue is a deadlock when reading RSS config with ethtool -x because the driver locks the net_device rss_lock that is already held by the core; the fix is to remove the driver-side lock acquisition (deadlock avoidance). P...

CVE-2026-23165 sfc: fix deadlock in RSS config read

In the Linux kernel, the following vulnerability has been resolved: sfc: fix deadlock in RSS config read Since cited commit, core locks the netdevice's rsslock when handling ethtool -x command, so driver's implementation should not lock it again. Remove the latter...

EUVD-2026-5879

In the Linux kernel, the following vulnerability has been resolved: octeonep: Fix memory leak in octepdevicesetup In octepdevicesetup, if octepctrlnetinit fails, the function returns directly without unmapping the mapped resources and freeing the allocated configuration memory. Fix this by jumpin...

CVE-2026-23143 virtio_net: Fix misalignment bug in struct virtnet_info

In the Linux kernel, the following vulnerability has been resolved: virtionet: Fix misalignment bug in struct virtnetinfo Use the new TRAILINGOVERLAP helper to fix a misalignment bug along with the following warning: drivers/net/virtionet.c:429:46: warning: structure containing a flexible array...