Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-45842)

"In the Linux kernel, the following vulnerability has been resolved: slip: reject VJ receive packets on instances with no rstate array slhcinit accepts rslots == 0 as a valid configuration, with the documented meaning of 'no receive compression'. In that case the allocation loop in slhcinit is...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-53150)

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Reject zero-length property entries in validator tbpropertyentryvalid accepts entries with length == 0 for DIRECTORY, DATA, and TEXT types. A zero-length TEXT entry passes validation but causes an underflow in the...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-46018)

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: stop parsing UAC2 rates at MAXNRRATES parseuac2sampleraterange caps the number of enumerated rates at MAXNRRATES, but it only breaks out of the current rate loop. A malformed UAC2 RANGE response with additional...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-53228)

In the Linux kernel, the following vulnerability has been resolved: ipv6: sit: reload inner IPv6 header after GSO offloads ipip6tunnelxmit caches the inner IPv6 header pointer at function entry and continues using it after iptunnelhandleoffloads. For GSO skbs, iptunnelhandleoffloads calls...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-31711)

"In the Linux kernel, the following vulnerability has been resolved: smb: server: fix activenumconn leak on transport allocation failure Commit 77ffbcac4e56 'smb: server: fix leak of activenumconn in ksmbdtcpnewconnection' addressed the kthreadrun failure path. The earlier alloctransport == NULL...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-23444)

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: always free skb on ieee80211txprepareskb failure ieee80211txprepareskb has three error paths, but only two of them free the skb. The first error path ieee80211txprepare returning TXDROP does not free it, while...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-53131)

In the Linux kernel, the following vulnerability has been resolved: netfilter: require Ethernet MAC header before using ethhdr ip6teui64, xtmac, the bitmap:ip,mac, hash:ip,mac, and hash:mac ipset types, and nflogsyslog access ethhdrskb after either assuming that the skb is associated with an...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-31698)

In the Linux kernel, the following vulnerability has been resolved: crypto: ccp: Don't attempt to copy PDH cert to userspace if PSP command failed When retrieving the PDH cert, don't attempt to copy the blobs to userspace if the firmware command failed. If the failure was due to an invalid length...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2024-58077)

In the Linux kernel, the following vulnerability has been resolved: ASoC: soc-pcm: don't use socpcmret on .prepare callback commit 1f5664351410 'ASoC: lower 'no backend DAIs enabled for ... Port' log severity' ignores -EINVAL error message on common socpcmret. It is used from many functions,...

Siemens SIMATIC S7-1500 TM MFP Expired Pointer Dereference (CVE-2026-52923)

In the Linux kernel, the following vulnerability has been resolved: ipc: limit nextid allocation to the valid ID range The checkpoint/restore sysctl path can request the next SysV IPC id through ids-nextid. ipcidralloc currently forwards that request to idralloc with an open-ended upper bound. If...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-53265)

In the Linux kernel, the following vulnerability has been resolved: dm cache policy smq: check allocation under invalidate lock commit 2d1f7b65f5de 'dm cache policy smq: fix missing locks in invalidating cache blocks' added mq-lock around the destructive part of smqinvalidatemapping, but left the...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-23312)

In the Linux kernel, the following vulnerability has been resolved: net: usb: kaweth: validate USB endpoints The kaweth driver should validate that the device it is probing has the proper number and types of USB endpoints it is expecting before it binds to it. If a malicious device were to not ha...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-46151)

In the Linux kernel, the following vulnerability has been resolved: usb: usblp: fix heap leak in IEEE 1284 device ID via short response usblpctrlmsg collapses the usbcontrolmsg return value to 0/-errno, discarding the actual number of bytes transferred. A broken printer can complete the GETDEVICE...

Siemens SIMATIC S7-1500 TM MFP Missing Release of Resource after Effective Lifetime (CVE-2026-23339)

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free skb on ncitransceive early error paths ncitransceive takes ownership of the skb passed by the caller, but the -EPROTO, -EINVAL, and -EBUSY error paths return without freeing it. Due to issues clearing NCIDATAEXCHAN...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-46185)

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix out-of-bounds read in symlinkdata Since smb2checkmessage returns success without length validation for the symlink error response, in symlinkdata it is possible for iov-iovlen to be smaller than sizeofstruct...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2025-38105)

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Kill timer properly at removal The USB-audio MIDI code initializes the timer, but in a rare case, the driver might be freed without the disconnect call. This leaves the timer in an active state while the assigned...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-46177)

In the Linux kernel, the following vulnerability has been resolved: ipmi: Add limits to event and receive message requests The driver would just fetch events and receive messages until the BMC said it was done. To avoid issues with BMCs that never say they are done, add a limit of 10 fetches at a...

Siemens SIMATIC S7-1500 TM MFP Improper Input Validation (CVE-2026-43110)

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: validate bsscfg indices in IF events brcmffwehhandleifevent validates the firmware-provided interface index before it touches drvr-iflist, but it still uses the raw bsscfgidx field as an array index without a...

Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: xfrm: espintcp: do not reuse an in-progress partial send CVE-2026-52935 kernel: USB: serial: ioti: fix heap overflow in getmanufinfo CVE-2026-53196 kernel: sctp: keep chunk-transport in...

Important: kernel-rt security, bug fix, and enhancement update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fixes: kernel: xfrm: espintcp: do not reuse an in-progress partial send CVE-2026-52935 kernel: USB: serial: ioti: fix heap overflow in getmanufin...