Astra Linux - уязвимость в linux-5.10, linux

In the Linux kernel, the following vulnerability has been resolved: net: nfc: Fixed a use-after-free in localcleanup. A use-after-free occurs in kfreeskb called from localcleanup. This can occur when killing the nfc daemon e.g., neard after detaching an nfc device. When detaching an nfc device,...

CVE-2026-43134

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix missing key size check for L2CAPLECONNREQ This adds a check for encryption key size upon receiving L2CAPLECONNREQ which is required by L2CAP/LE/CFC/BV-15-C which expects L2CAPCRLEBADKEYSIZE...

Astra Linux - уязвимость в linux-5.10, linux-5.15, linux

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix u8 overflow By keep sending L2CAPCONFREQ packets, chan-numconfrsp increases multiple times and eventually it will wrap around the maximum number i.e., 255. This patch prevents this by adding a boundary check...

nfc: llcp: add missing return after LLCP_CLOSED checks

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Bluetooth: L2CAP: Fix ERTM re-init and zero pdu_len infinite loop

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PT-2026-34417

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Validate PDU length before reading SDU length in l2cap ecred data rcv l2cap ecred data rcv reads the SDU length field from skb-data using get unaligned le16 without first verifying that skb contains at least L2C...

CVE-2026-23462

A flaw was found in the Linux kernel's Bluetooth subsystem HIDP. A local attacker can exploit a use-after-free vulnerability by failing to properly drop a reference to an L2CAP Logical Link Control and Adaptation Protocol connection during a user removal callback. This memory corruption flaw may...

SUSE CVE-2026-23395

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix accepting multiple L2CAPECREDCONNREQ Currently the code attempts to accept requests regardless of the command identifier which may cause multiple requests to be marked as pending FLAGDEFERSETUP which can cau...

CVE-2026-23150

In the Linux kernel, the following vulnerability has been resolved: nfc: llcp: Fix memleak in nfcllcpsenduiframe. syzbot reported various memory leaks related to NFC, struct nfcllcpsock, skbuff, nfcdev, etc. 0 The leading log hinted that nfcllcpsenduiframe failed to allocate skb due to sockerrors...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000483)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000483 advisory. A heap data infoleak in multiple locations including L2CAPPARSECONFRSP was found in the Linux kernel before 5.1-rc1. Tenable has extracted the preceding description...

kernel: Bluetooth: L2CAP: Fix use-after-free

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix use-after-free Fix potential use-after-free in l2caplecommandrej...

PT-2025-41117

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the Bluetooth implementation where the disconnect callback is called after the connection has been deleted. Specifically, in the hci cs disconnect...

Bluetooth: L2CAP: Fix not validating setsockopt user input

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Linux Distros Unpatched Vulnerability : CVE-2025-21925

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - llc: do not use skbget before devqueuexmit syzbot is able to crash hosts 1, using llc and devices not supporting IFFTXSKBSHARING. In this case, e1000 driver cal...

Linux Distros Unpatched Vulnerability : CVE-2023-52843

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - llc: verify mac len before reading mac header LLC reads the mac header with ethhdr without verifying that the skb has an Ethernet header. Syzbot was able to ent...

kernel: Bluetooth: L2CAP: Fix div-by-zero in l2cap_le_flowctl_init()

in linux kernel bluetooth L2CAP, l2capleflowctlinit can cause both div-by-zero and an integer overflow since hdev-lemtu may not fall in the valid range...

Bluetooth: L2CAP: Fix div-by-zero in l2cap_le_flowctl_init()

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Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. Linux kernel has a security vulnerability that stems from a vulnerability in the llc module...

kernel: Information leak in l2cap_parse_conf_req in net/bluetooth/l2cap_core.c

An information leak vulnerability was found in the Linux kernel's implementation of logical link control and adaptation protocol L2CAP, part of the Bluetooth stack in the l2capparseconfreq function. An attacker with physical access within the range of standard Bluetooth transmission could use thi...

kernel: use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c

A flaw was found in l2capsockrelease in net/bluetooth/l2capsock.c in the Bluetooth subsystem in the Linux Kernel. This issue may allow a user to cause a use-after-free problem due to sk's children being mishandled...