CVE-2026-64009

In the Linux kernel, the following vulnerability has been resolved: xfrm: Check for underflow in xfrmstatemtu Leo Lin reported OOB write issue in esp component: xfrmstatemtu returns u32 but performs its arithmetic in unsigned modulo-2^32 space using an attacker-influenced "headerlen + authsize +...

CVE-2026-63935

In the Linux kernel, the following vulnerability has been resolved: iio: adc: nxp-sar-adc: fix division by zero in writeraw Add a validation check for the sampling frequency value before using it as a divisor. A user writing zero or a negative value to the samplingfrequency sysfs attribute trigge...

CVE-2026-63896

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: composite: fix integer underflow in WebUSB GETURL handling The WebUSB GETURL handler in compositesetup narrows landingpagelength to fit the host-supplied wLength using landingpagelength = wlength -...

CVE-2026-63892

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Reject dirlen length u16 widened to sizet. Two distinct OOB conditions follow when entry-length uuid, ... which always reads 4 dwords from diroffset. tbpropertyentryvalid only enforces diroffset +...

CVE-2026-63883

In the Linux kernel, the following vulnerability has been resolved: serial: qcomgeni: fix kfifo underflow when flush precedes DMA completion IRQ When uartflushbuffer runs before the DMA completion IRQ is delivered, the following race can occur all steps serialized by uartportlock: 1. DMA starts:...

CVE-2026-64102 RDMA/siw: Reject MPA FPDU length underflow before signed receive math

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Reject MPA FPDU length underflow before signed receive math A malicious connected siw peer can send an iWARP FPDU whose MPA length field chdr-mpalen, 16 bit big-endian, peer-controlled is smaller than the fixed DDP/RDMA...

CVE-2026-64102

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Reject MPA FPDU length underflow before signed receive math A malicious connected siw peer can send an iWARP FPDU whose MPA length field chdr-mpalen, 16 bit big-endian, peer-controlled is smaller than the fixed DDP/RDMA...

CVE-2026-64102 RDMA/siw: Reject MPA FPDU length underflow before signed receive math

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Reject MPA FPDU length underflow before signed receive math A malicious connected siw peer can send an iWARP FPDU whose MPA length field chdr-mpalen, 16 bit big-endian, peer-controlled is smaller than the fixed DDP/RDMA...

EUVD-2026-45787

In the Linux kernel, the following vulnerability has been resolved: RDMA/siw: Reject MPA FPDU length underflow before signed receive math A malicious connected siw peer can send an iWARP FPDU whose MPA length field chdr-mpalen, 16 bit big-endian, peer-controlled is smaller than the fixed DDP/RDMA...

CVE-2026-64102

CVE-2026-64102 affects the Linux kernel RDMA/siw path. A malicious siw peer can send an iWARP FPDU whose MPA length (mpa_len) is smaller than the fixed DDP/RDMAP header for the announced opcode, triggering an underflow in fpdu_part_rem during siw_tcp_rx_data and leading to a potential out-of-boun...

CVE-2026-63868

In the Linux kernel, the following vulnerability has been resolved: net: garp: fix unsigned integer underflow in garppduparseattr The receive-side GARP attribute parser computes dlen with reversed operands: dlen = sizeofga - ga-len; ga-len is the on-wire attribute length and includes the GARP...

CVE-2026-64009

In the Linux kernel, the following vulnerability has been resolved: xfrm: Check for underflow in xfrmstatemtu Leo Lin reported OOB write issue in esp component: xfrmstatemtu returns u32 but performs its arithmetic in unsigned modulo-2^32 space using an attacker-influenced "headerlen + authsize +...

CVE-2026-64009 xfrm: Check for underflow in xfrm_state_mtu

In the Linux kernel, the following vulnerability has been resolved: xfrm: Check for underflow in xfrmstatemtu Leo Lin reported OOB write issue in esp component: xfrmstatemtu returns u32 but performs its arithmetic in unsigned modulo-2^32 space using an attacker-influenced "headerlen + authsize +...

EUVD-2026-45582

In the Linux kernel, the following vulnerability has been resolved: xfrm: Check for underflow in xfrmstatemtu Leo Lin reported OOB write issue in esp component: xfrmstatemtu returns u32 but performs its arithmetic in unsigned modulo-2^32 space using an attacker-influenced "headerlen + authsize +...

CVE-2026-64009 xfrm: Check for underflow in xfrm_state_mtu

In the Linux kernel, the following vulnerability has been resolved: xfrm: Check for underflow in xfrmstatemtu Leo Lin reported OOB write issue in esp component: xfrmstatemtu returns u32 but performs its arithmetic in unsigned modulo-2^32 space using an attacker-influenced "headerlen + authsize +...

CVE-2026-64009

The CVE-2026-64009 family affects the Linux kernel xfrm subsystem, specifically an out-of-bounds write in ESP handling due to an underflow in xfrm_state_mtu(). The function computes using unsigned arithmetic: it subtracts attacker-influenced header_len + authsize + net_adj from a small mtu, allow...

CVE-2026-63940

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Ignore Port I/O requests of length '0' Explicitly ignore Port I/O requests of length '0' or count '0', so that setting up the software scratch area and other code doesn't have to worry about underflowing the length, and...

CVE-2026-63940

In the Linux kernel KVM SEV issue, the vulnerability concerns ignoring Port I/O requests of length 0. The fix ensures that Port I/O requests with length 0 (or count 0) are explicitly ignored so that the software scratch area setup and related code won’t underflow the length, and to enable a warni...

CVE-2026-63940 KVM: SEV: Ignore Port I/O requests of length '0'

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Ignore Port I/O requests of length '0' Explicitly ignore Port I/O requests of length '0' or count '0', so that setting up the software scratch area and other code doesn't have to worry about underflowing the length, and...

CVE-2026-63935 iio: adc: nxp-sar-adc: fix division by zero in write_raw

In the Linux kernel, the following vulnerability has been resolved: iio: adc: nxp-sar-adc: fix division by zero in writeraw Add a validation check for the sampling frequency value before using it as a divisor. A user writing zero or a negative value to the samplingfrequency sysfs attribute trigge...