EUVD-2026-103897

In the Linux kernel, the following vulnerability has been resolved: net/mctp: publish the mctpdev only after it is initialised mctpadddev links the new mctpdev into dev-mctpptr before mdev-dev is assigned, so a reader that picks the device up in that window dereferences a netdevice pointer that i...

CVE-2026-98812

A vulnerability exists in the Linux kernel 's net/mctp component where the mctp_add_dev() function incorrectly links a new mctp_dev into dev->mctp_ptr before the mdev->dev pointer is assigned. This race condition allows a reader to pick up the device in a window where it still points to NUL...

CVE-2026-98812 net/mctp: publish the mctp_dev only after it is initialised

In the Linux kernel, the following vulnerability has been resolved: net/mctp: publish the mctpdev only after it is initialised mctpadddev links the new mctpdev into dev-mctpptr before mdev-dev is assigned, so a reader that picks the device up in that window dereferences a netdevice pointer that i...

CVE-2026-98812

In the Linux kernel, the following vulnerability has been resolved: net/mctp: publish the mctpdev only after it is initialised mctpadddev links the new mctpdev into dev-mctpptr before mdev-dev is assigned, so a reader that picks the device up in that window dereferences a netdevice pointer that i...

EUVD-2026-103570

In the Linux kernel, the following vulnerability has been resolved: mctp: route: iterate socket tag list in mctplookupprealloctag When a socket transmits a packet with MCTPTAGPREALLOC set, mctplookupprealloctag iterates over the per-netns &mns-keys list and matches netid, reqtag, peeraddr, and...

CVE-2026-98525

The Linux kernel contains a vulnerability in the MCTP protocol within the mctp_lookup_prealloc_tag() function. When a socket transmits a packet with MCTP_TAG_PREALLOC set, the kernel incorrectly iterates over the per-network namespace keys list (&mns->keys) instead of the specific socket's tag...

CVE-2026-98525 mctp: route: iterate socket tag list in mctp_lookup_prealloc_tag()

In the Linux kernel, the following vulnerability has been resolved: mctp: route: iterate socket tag list in mctplookupprealloctag When a socket transmits a packet with MCTPTAGPREALLOC set, mctplookupprealloctag iterates over the per-netns &mns-keys list and matches netid, reqtag, peeraddr, and...

CVE-2026-98525

In the Linux kernel, the following vulnerability has been resolved: mctp: route: iterate socket tag list in mctplookupprealloctag When a socket transmits a packet with MCTPTAGPREALLOC set, mctplookupprealloctag iterates over the per-netns &mns-keys list and matches netid, reqtag, peeraddr, and...

CVE-2026-65200

The openUBMC device-management process parses PLDM-over-MCTP and NCSI-over-MCTP responses from on-bus devices, and three response parsers in the shared transport libraries subtract a fixed header or reserved-field size from a device-supplied response length without a lower-bound check. An...

CVE-2026-65200 Huawei malicious on-bus PLDM or NCSI device can drive out-of-bounds-heap reads via short MCTP responses

The openUBMC device-management process parses PLDM-over-MCTP and NCSI-over-MCTP responses from on-bus devices, and three response parsers in the shared transport libraries subtract a fixed header or reserved-field size from a device-supplied response length without a lower-bound check. An...

CVE-2026-65200

The openUBMC device-management process is vulnerable to an out-of-bounds heap read due to an integer underflow. Three response parsers within the shared transport libraries fail to perform a lower-bound check when subtracting a fixed header or reserved-field size from a device-supplied response l...

ROS-20261012-73-0060

The vulnerability of the mctpflowprepareoutput function in the net/mctp/route.c module of the Linux kernel is related to deficiencies in the deserialization mechanism, due to insufficient protection of sensitive data. Exploiting this vulnerability allows an attacker to compromise the...

ROS-20261012-73-0234

The vulnerability of the mctp-i2c.c component in the Linux operating system’s kernel is related to the use of an uninitialized resource. Exploiting this vulnerability could allow an attacker to access confidential data...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mctp i2c: Initializing the event handler for read bytes A value of 0xff was set for I2C reads of the mctp-i2c device. Otherwise, reads will return “val” from the I2C bus driver. For I2c-aspeed and i2c-npcm7xx, this represents an...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mctp: Route lookups now perform under a RCU read-side lock. Our current route lookups mctproutelookup and mctproutelookupnull traverse the network’s route list without holding the RCU read lock. This means that the route lookups...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mctp: Fixed an error handling path in mctpinit. If mctpneighinit returns an error, the route resources should be released during the error handling path. Otherwise, some resources may be leaked...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net: mctp: Do not access ifaindex when it is missing In mctpdumpaddrinfo, ifaindex can be used to filter interfaces, but only when the struct ifaddrmsg is provided. Otherwise, it will compare to uninitialized memory—a...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: - mctp i2c: Handle the NULL header address. - daddr can be NULL if there is no neighbour table entry present; in that case, the TX packet should be discarded. - saddr is usually set by the MCTP core, but check for NULL in case...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mctp: Serial: Handling of zero-length frames to prevent RX buffer overflow The MCTP serial receive state machine reads the frame length byte in the mctpSerialPushHeader function’s case 2, and validates it as an upper-bound-only...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: mctp: i2c: Fixed a skb memory leak in the receive path. When midev-allowrx is set to false, the newly allocated skb is not consumed by netifrx. It is necessary to free the skb directly...