EUVD-2026-70346

In the Linux kernel, the following vulnerability has been resolved: afpacket: Don't send zero-byte data in tpacketsnd. syzbot reported a WARNING in devqueuexmit triggered via tpacketsnd: skbassertlen WARNING: at include/linux/skbuff.h:2753 skbassertlen WARNING: at devqueuexmit+0x21bc/0x4970...

CVE-2026-80742 af_packet: Don't send zero-byte data in tpacket_snd().

In the Linux kernel, the following vulnerability has been resolved: afpacket: Don't send zero-byte data in tpacketsnd. syzbot reported a WARNING in devqueuexmit triggered via tpacketsnd: skbassertlen WARNING: at include/linux/skbuff.h:2753 skbassertlen WARNING: at devqueuexmit+0x21bc/0x4970...

CVE-2026-80742 af_packet: Don't send zero-byte data in tpacket_snd().

In the Linux kernel, the following vulnerability has been resolved: afpacket: Don't send zero-byte data in tpacketsnd. syzbot reported a WARNING in devqueuexmit triggered via tpacketsnd: skbassertlen WARNING: at include/linux/skbuff.h:2753 skbassertlen WARNING: at devqueuexmit+0x21bc/0x4970...

CVE-2026-80742

CVE-2026-80742 affects the Linux kernel in the af_packet subsystem (net/packet/af_packet.c). When sending zero-byte packets via the TPACKET ring buffer on devices with no hard header (dev->hard_header_len == 0), tpacket_fill_skb() produces an skb with skb->len == 0 , which tpacket_snd() for...

EUVD-2026-70344

In the Linux kernel, the following vulnerability has been resolved: drm/log: Fix infinite loop when scale is too large for display When scale is large enough that scaledfont exceeds the display dimensions, rows or columns become 0. A columns value of 0 causes an infinite loop in...

CVE-2026-80731 net: remove CAP_SYS_RAWIO zero-padding in dev_validate_header

In the Linux kernel, the following vulnerability has been resolved: net: remove CAPSYSRAWIO zero-padding in devvalidateheader devvalidateheader reads dev-hardheaderlen directly when zero-padding short link layer headers for CAPSYSRAWIO holders: if capableCAPSYSRAWIO memsetllheader + len, 0,...

CVE-2026-80731

CVE-2026-80731 is an out-of-bounds write in the Linux kernel's networking subsystem, specifically in dev_validate_header() . When a process holding CAP_SYS_RAWIO sends a packet with a short link-layer header, the function zero-pads using a direct read of dev->hard_header_len . If the device is...

CVE-2026-80731 net: remove CAP_SYS_RAWIO zero-padding in dev_validate_header

In the Linux kernel, the following vulnerability has been resolved: net: remove CAPSYSRAWIO zero-padding in devvalidateheader devvalidateheader reads dev-hardheaderlen directly when zero-padding short link layer headers for CAPSYSRAWIO holders: if capableCAPSYSRAWIO memsetllheader + len, 0,...

Researcher Releases FalconFlank PoC Showing Privilege Escalation in CrowdStrike Falcon

The security researcher known as Chaotic Eclipse aka INFINITE NIGHTMARE, MSNightmare, and Nightmare-Eclipse has dropped a new zero-day dubbed FalconFlank , a proof-of-concept PoC for a privilege escalation flaw impacting Crowdstrike Falcon. "FalconFlank is a 0-day privilege escalation that abuses...

kernel: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr

A flaw was found in the Linux kernel's NFSv4/pNFS implementation. The nfs4decodempdsaddr function, responsible for decoding network address information, does not properly handle zero-length raddr opaque data. A malicious or compromised metadata server can exploit this by providing a zero-length...

kernel: NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr

A flaw was found in the Linux kernel's NFSv4/pNFS implementation. The nfs4decodempdsaddr function, responsible for decoding network address information, does not properly handle zero-length raddr opaque data. A malicious or compromised metadata server can exploit this by providing a zero-length...

PT-2026-84929

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds write exists in the dev validate header function. The issue occurs when the function reads dev-hard header len to zero-pad short link layer headers for users with CAP SY...

PT-2026-84939

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds read occurs in the drm log draw kmsg record function when processing a message with a length of 0. Because the len variable is an unsigned integer, subtracting 1 from it...

PT-2026-84940

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel where sending zero-byte packets via the TPACKET ring buffer on devices without a hard header where dev-hard header len is 0 can trigger a warning in t...

PT-2026-85254

Name of the Vulnerable Software and Affected Versions Xpdf versions prior to 4.07 Description A divide-by-zero error occurs when processing a Type 3 font containing a glyph with a height of zero. Recommendations Update to a version newer than 4.06...

CVE-2026-85458: Divide By Zero

Divide-by-zero in Xpdf 4.06 and earlier, when a glyph in a Type 3 font has a zero height...

CVE-2026-80742: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: afpacket: Don't send zero-byte data in tpacketsnd. syzbot reported a WARNING in devqueuexmit triggered via tpacketsnd: skbassertlen WARNING: at include/linux/skbuff.h:2753 skbassertlen WARNING: at devqueuexmit+0x21bc/0x4970...

PT-2026-90881

In the Linux kernel, the following vulnerability has been resolved: af packet: Don't send zero-byte data in tpacket snd. syzbot reported a WARNING in dev queue xmit triggered via tpacket snd: skb assert len WARNING: at include/linux/skbuff.h:2753 skb assert len WARNING: at dev queue...

netfilter Heap Buffer Overflow DoS

The vulnerability of the fnnlosfaddcallback function in the net/netfilter/nfnetlinkosf.c module of the netfilter kernel of the Linux operating system is related to zero-division errors. Exploiting this vulnerability could allow an attacker to cause a service failure...

block/bfq-iosched Heap Buffer Overflow DoS

The vulnerability of the bfqqrequestoverlimit function in the block/bfq-iosched.c module related to Linux’s block-level kernel support involves errors related to division by zero. Exploiting this vulnerability could allow an attacker to cause a service failure...