CVE-2026-68162 sctp: avoid auth_enable sysctl UAF during netns teardown

In the Linux kernel, the following vulnerability has been resolved: sctp: avoid authenable sysctl UAF during netns teardown procsctpdoauth updates the SCTP control socket after changing net.sctp.authenable. The handler gets the per-net SCTP state from ctl-data, so an already opened sysctl file ca...

CVE-2026-68162

CVE-2026-68162 is a Linux kernel SCTP vulnerability (local) where a Use-After-Free can occur during netns teardown due to an auth_enable sysctl window. The bug stems from SCTP’s per-net sysctl state being registered before the control socket is fully established and remaining writable after inet_...

EUVD-2026-55548

In the Linux kernel, the following vulnerability has been resolved: sctp: avoid authenable sysctl UAF during netns teardown procsctpdoauth updates the SCTP control socket after changing net.sctp.authenable. The handler gets the per-net SCTP state from ctl-data, so an already opened sysctl file ca...

PT-2026-69562

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A Use-After-Free UAF issue exists in the SCTP implementation during network namespace teardown. The proc sctp do auth function updates the SCTP control socket after modifying the...

Siemens SIMATIC Devices NULL Pointer Dereference (CVE-2025-21638)

In the Linux kernel, the following vulnerability has been resolved: sctp: sysctl: authenable: avoid using current-nsproxy As mentioned in a previous commit of this series, using the 'net' structure via 'current' is not recommended for different reasons: - Inconsistency: getting info from the...

sctp: sysctl: auth_enable: avoid using current->nsproxy

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SUSE CVE-2025-21638

In the Linux kernel, the following vulnerability has been resolved: sctp: sysctl: authenable: avoid using current-nsproxy As mentioned in a previous commit of this series, using the 'net' structure via 'current' is not recommended for different reasons: - Inconsistency: getting info from the...

UBUNTU-CVE-2025-21638

In the Linux kernel, the following vulnerability has been resolved: sctp: sysctl: authenable: avoid using current-nsproxy As mentioned in a previous commit of this series, using the 'net' structure via 'current' is not recommended for different reasons: - Inconsistency: getting info from the...

kernel: sctp: fix to calc the INIT/INIT-ACK chunk length correctly to set

net/sctp/smmakechunk.c in the Linux kernel before 2.6.34, when addipenable and authenable are used, does not consider the amount of zero padding during calculation of chunk lengths for 1 INIT and 2 INIT ACK chunks, which allows remote attackers to cause a denial of service OOPS via crafted packet...

kernel: sctp: fix to calc the INIT/INIT-ACK chunk length correctly to set

net/sctp/smmakechunk.c in the Linux kernel before 2.6.34, when addipenable and authenable are used, does not consider the amount of zero padding during calculation of chunk lengths for 1 INIT and 2 INIT ACK chunks, which allows remote attackers to cause a denial of service OOPS via crafted packet...