UBUNTU-CVE-2025-40112

In the Linux kernel, the following vulnerability has been resolved: sparc: fix accurate exception reporting in copyfromtouser for Niagara The referenced commit introduced exception handlers on user-space memory references in copyfromuser and copytouser. These handlers return from the respective...

UBUNTU-CVE-2025-40170

In the Linux kernel, the following vulnerability has been resolved: net: use dstdevrcu in sksetupcaps Use RCU to protect accesses to dst-dev from sksetupcaps and skdstgsomaxsize. Also use dstdevrcu in ip6dstmtumaybeforward, and ipdstmtumaybeforward. ip4dsthoplimit can use dstdevnetrcu...

UBUNTU-CVE-2025-40133

In the Linux kernel, the following vulnerability has been resolved: mptcp: Use skdstget and dstdevrcu in mptcpactiveenable. mptcpactiveenable is called from subflowfinishconnect, which is icsk-icskafops-skrxdstset and it's not always under RCU. Using skdstgetsk-dev could trigger UAF. Let's use...

UBUNTU-CVE-2025-40124

In the Linux kernel, the following vulnerability has been resolved: sparc: fix accurate exception reporting in copyfromtouser for UltraSPARC III Anthony Yznaga tracked down that a BUGON in ext4 code with large folios enabled resulted from copyfromuser returning impossibly large values greater tha...

UBUNTU-CVE-2025-40135

In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6xmit Use RCU in ip6xmit in order to use dstdevrcu to prevent possible UAF...

UBUNTU-CVE-2025-40149

In the Linux kernel, the following vulnerability has been resolved: tls: Use skdstget and dstdevrcu in getnetdevforsock. getnetdevforsock is called during setsockopt, so not under RCU. Using skdstgetsk-dev could trigger UAF. Let's use skdstget and dstdevrcu. Note that the only -ndoskgetlowerdev...

CVE-2025-40170

CVE-2025-40170 affects the Linux kernel net subsystem. The vulnerability arises from unsafe accesses to dst->dev in sk_setup_caps() and related paths, not guarded by RCU. The fix adds RCU protection via dst_dev_rcu() (and dst_dev_rcu()-protected paths) in sk_setup_caps(), sk_dst_gso_max_size()...

CVE-2025-40168

In the Linux kernel, the following vulnerability has been resolved: smc: Use skdstget and dstdevrcu in smcclcprfxmatch. smcclcprfxmatch is called from smclistenwork and not under RCU nor RTNL. Using skdstgetsk-dev could trigger UAF. Let's use skdstget and dstdevrcu. Note that the returned value o...

CVE-2025-40158

In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6output Use RCU in ip6output in order to use dstdevrcu to prevent possible UAF. We can remove rcureadlock/rcureadunlock pairs from ip6finishoutput2...

CVE-2025-40158 ipv6: use RCU in ip6_output()

In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6output Use RCU in ip6output in order to use dstdevrcu to prevent possible UAF. We can remove rcureadlock/rcureadunlock pairs from ip6finishoutput2...

CVE-2025-40158

CVE-2025-40158 concerns the Linux kernel IPv6 stack. The issue arises from improper RCU usage in ip6_output(), which attempted to use dst_dev_rcu() and, per the advisory, allows a potential UAF if the RCU handling is not correct. The description specifies that the fix is to use RCU in ip6_output(...

CVE-2025-40149 tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().

In the Linux kernel, the following vulnerability has been resolved: tls: Use skdstget and dstdevrcu in getnetdevforsock. getnetdevforsock is called during setsockopt, so not under RCU. Using skdstgetsk-dev could trigger UAF. Let's use skdstget and dstdevrcu. Note that the only -ndoskgetlowerdev...

CVE-2025-40149 tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock().

In the Linux kernel, the following vulnerability has been resolved: tls: Use skdstget and dstdevrcu in getnetdevforsock. getnetdevforsock is called during setsockopt, so not under RCU. Using skdstgetsk-dev could trigger UAF. Let's use skdstget and dstdevrcu. Note that the only -ndoskgetlowerdev...

CVE-2025-40139 smc: Use __sk_dst_get() and dst_dev_rcu() in in smc_clc_prfx_set().

In the Linux kernel, the following vulnerability has been resolved: smc: Use skdstget and dstdevrcu in in smcclcprfxset. smcclcprfxset is called during connect and not under RCU nor RTNL. Using skdstgetsk-dev could trigger UAF. Let's use skdstget and devdstrcu under rcureadlock after...

CVE-2025-40135 ipv6: use RCU in ip6_xmit()

In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6xmit Use RCU in ip6xmit in order to use dstdevrcu to prevent possible UAF...

CVE-2025-40135 ipv6: use RCU in ip6_xmit()

In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6xmit Use RCU in ip6xmit in order to use dstdevrcu to prevent possible UAF...

CVE-2025-40135

In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6xmit Use RCU in ip6xmit in order to use dstdevrcu to prevent possible UAF...

CVE-2025-40135 ipv6: use RCU in ip6_xmit()

In the Linux kernel, the following vulnerability has been resolved: ipv6: use RCU in ip6xmit Use RCU in ip6xmit in order to use dstdevrcu to prevent possible UAF...

CVE-2025-40133

CVE-2025-40133 is a Linux kernel vulnerability affecting Multipath TCP. The issue arises in mptcp_active_enable(), called from subflow_finish_connect(), where sk_dst_get(sk)->dev may be accessed outside RCU, risking a use-after-free. The advisory notes the fix is to use __sk_dst_get() and dst_...

CVE-2025-40126

CVE-2025-40126 affects the Linux kernel (sparc/UltraSPARC) where a faulty exception handling path in copy_from_user and copy_to_user could affect the return value in faulting scenarios. The referenced commit added exception handlers for user-space memory references and incorrectly calculated the ...