USN-8291-1: Linux kernel (Intel IoTG Real-time) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - SMB network file system; - Netfilter; - iouring subsystem; CVE-2024-35862, CVE-2024-50060, CVE-2026-23274,...

CVE-2026-43502

In the Linux kernel, the following vulnerability has been resolved: net/rds: handle zerocopy send cleanup before the message is queued A zerocopy send can fail after user pages have been pinned but before the message is attached to the sending socket. The purge path currently infers zerocopy stat...

CVE-2026-43502

The CVE-2026-43502 vulnerability affects the Linux kernel net/rds zerocopy send path. The root cause is incorrect cleanup logic: zerocopy ownership is determined by op_mmp_znotifier, but purge uses rm->m_rs, risking unqueued messages being cleaned up as if they owned normal payload pages. The ...

CVE-2026-43502 net/rds: handle zerocopy send cleanup before the message is queued

In the Linux kernel, the following vulnerability has been resolved: net/rds: handle zerocopy send cleanup before the message is queued A zerocopy send can fail after user pages have been pinned but before the message is attached to the sending socket. The purge path currently infers zerocopy stat...

CVE-2026-43502 net/rds: handle zerocopy send cleanup before the message is queued

In the Linux kernel, the following vulnerability has been resolved: net/rds: handle zerocopy send cleanup before the message is queued A zerocopy send can fail after user pages have been pinned but before the message is attached to the sending socket. The purge path currently infers zerocopy stat...

EUVD-2026-31275

In the Linux kernel, the following vulnerability has been resolved: net/rds: handle zerocopy send cleanup before the message is queued A zerocopy send can fail after user pages have been pinned but before the message is attached to the sending socket. The purge path currently infers zerocopy stat...

CVE-2026-43495

In the Linux kernel, the following vulnerability has been resolved: net: wwan: t7xx: validate portcount against message length in t7xxportenummsghandler t7xxportenummsghandler uses the modem-supplied portcount field as a loop bound over portmsg-data without checking that the message buffer contai...

EUVD-2026-31271

In the Linux kernel, the following vulnerability has been resolved: net: wwan: t7xx: validate portcount against message length in t7xxportenummsghandler t7xxportenummsghandler uses the modem-supplied portcount field as a loop bound over portmsg-data without checking that the message buffer contai...

CVE-2026-43495 net: wwan: t7xx: validate port_count against message length in t7xx_port_enum_msg_handler

In the Linux kernel, the following vulnerability has been resolved: net: wwan: t7xx: validate portcount against message length in t7xxportenummsghandler t7xxportenummsghandler uses the modem-supplied portcount field as a loop bound over portmsg-data without checking that the message buffer contai...

CVE-2026-43495 net: wwan: t7xx: validate port_count against message length in t7xx_port_enum_msg_handler

In the Linux kernel, the following vulnerability has been resolved: net: wwan: t7xx: validate portcount against message length in t7xxportenummsghandler t7xxportenummsghandler uses the modem-supplied portcount field as a loop bound over portmsg-data without checking that the message buffer contai...

CVE-2026-43495

CVE-2026-43495 concerns the Linux kernel net/wwan/t7xx subsystem. The issue arises in t7xx_port_enum_msg_handler, which uses a modem-provided port_count to loop over port_msg->data[] without ensuring the message buffer is long enough, enabling a potential slab-out-of-bounds read when port_coun...

EUVD-2026-31267

In the Linux kernel, the following vulnerability has been resolved: net/rds: reset opnents when zerocopy page pin fails When iovitergetpages2 fails in rdsmessagezcopyfromuser, the pinned pages are released with putpage, and rm-data.opmmpznotifier is cleared. But we fail to properly clear...

CVE-2026-43494 net/rds: reset op_nents when zerocopy page pin fails

In the Linux kernel, the following vulnerability has been resolved: net/rds: reset opnents when zerocopy page pin fails When iovitergetpages2 fails in rdsmessagezcopyfromuser, the pinned pages are released with putpage, and rm-data.opmmpznotifier is cleared. But we fail to properly clear...

CVE-2026-43494 net/rds: reset op_nents when zerocopy page pin fails

In the Linux kernel, the following vulnerability has been resolved: net/rds: reset opnents when zerocopy page pin fails When iovitergetpages2 fails in rdsmessagezcopyfromuser, the pinned pages are released with putpage, and rm-data.opmmpznotifier is cleared. But we fail to properly clear...

CLSA-2026-1779358120 Fix CVE(s): CVE-2026-5773

SECURITY UPDATE: wrong reuse of SMB connection - debian/patches/CVE-2026-5773.patch: disable connection reuse for SMBS in lib/smb.c. - CVE-2026-5773...

CLSA-2026-1779357791 Fix CVE(s): CVE-2026-5773

SECURITY UPDATE: libcurl may reuse the wrong connection for SMBS transfers, leading to access of an unintended SMB share with the same credentials. - debian/patches/CVE-2026-5773.patch: disable connection reuse for SMBS in lib/url.c by returning early from ConnectionExists when the requested...

CLSA-2026-1779357393 curl: Fix of CVE-2026-5773

CVE-2026-5773: disable connection reuse for SMBS to prevent libcurl from reusing a connection to the same server for a different SMB share...

CLSA-2026-1779357116 curl: Fix of CVE-2026-5773

CVE-2026-5773: disable connection reuse for SMBS to prevent libcurl from reusing a connection to the same server for a different SMB share...

PT-2026-42561

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.1 Description An Insecure Direct Object Reference IDOR exists where the '/ccm/frontend/conversations/get rating' endpoint confirms the existence of and returns the rating score for any message by ID. IDOR is ...

PT-2026-42556

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.1 Description An Insecure Direct Object Reference IDOR exists in the 'AddMessage' and 'UpdateMessage' conversation controllers. These controllers accept user-supplied file attachment IDs through the attachmen...