UBUNTU-CVE-2024-26959

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btnxpuart: Fix btnxpuartclose Fix scheduling while atomic BUG in btnxpuartclose, properly purge the transmit queue and free the receive skb. 10.973809 BUG: scheduling while atomic: kworker/u9:0/80/0x00000002...

ASB-A-299123598

In unixstreamsendpage of afunix.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation...

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...

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...

Moderate: Red Hat Security Advisory: sssd security and bug fix update

An update for sssd is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the C...

kernel: tls: race between tx work scheduling and socket close

A race condition vulnerability was found in the tls subsystem of the Linux kernel. The submitting thread recvmsg/sendmsg may exit as soon as the async crypto handler calls complete, which could lead to undefined behavior and a denial of service...

kernel: bpf: bpf_sk_storage: Fix invalid wait context lockdep report

A locking context violation was found in the BPF socket local storage implementation in the Linux kernel. The code attempts to allocate memory via kzalloc while holding a rawspinlock, which is unsafe for PREEMPTRT kernels. This can cause lockdep warnings and potential issues on real-time kernels...

kernel: bpf, cpumap: Handle skb as well when clean up ptr_ring

An incorrect object type handling flaw was found in the Linux kernel's BPF cpumap implementation in the cleanup path. A local user can trigger this issue by running XDP redirect operations in SKB mode with the cpumap, causing the cleanup code to incorrectly treat socket buffers as XDP frames when...

kernel: x86/platform/uv: Use alternate source for socket to node data

In the Linux kernel, the following vulnerability has been resolved: x86/platform/uv: Use alternate source for socket to node data The UV code attempts to build a set of tables to allow it to do bidirectional socketnode lookups. But when nrcpus is set to a smaller number than actually present, the...

kernel: bpf: reject unhashed sockets in bpf_sk_assign

A reference counting flaw was found in the Linux kernel's BPF socket assignment helper when handling unhashed UDP sockets. When a BPF program assigns an unhashed UDP socket to a packet, the function increments the socket reference count assuming SOCKRCUFREE isn't set. However, subsequent bind or...

kernel: nbd: fix incomplete validation of ioctl arg

A flaw has been found in the Linux kernel’s NBD drivers.The issue stems from incomplete validation of IOCTL arguments passed to the NBD driver. Specifically, oversized or unchecked arguments may lead to a signed integer overflow in blockwritefullpage and misuse of argument values cast to int in...

kernel: GC's deletion of an SKB races with unix_stream_read_generic() leading to UAF

A use-after-free flaw was found in the Linux Kernel due to a race problem in the unix garbage collector's deletion of SKB races with unixstreamreadgeneric on the socket that the SKB is queued on...

kernel: wifi: ath12k: Avoid NULL pointer access during management transmit cleanup

In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: Avoid NULL pointer access during management transmit cleanup Currently 'ar' reference is not added in skbcb. Though this is generally not used during transmit completion callbacks, on interface removal the remaining...

kernel: Bluetooth: Fix possible deadlock in rfcomm_sk_state_change

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Fix possible deadlock in rfcommskstatechange syzbot reports a possible deadlock in rfcommskstatechange 1. While rfcommsockconnect acquires the sk lock and waits for the rfcomm lock, rfcommsockrelease could have the...

kernel: Bluetooth: L2CAP: Fix potential user-after-free

A use-after-free flaw was identified in the Linux kernel’s Bluetooth L2CAP implementation. In certain conditions, when allocating a socket buffer via allocskb, the kernel may release and later reacquire the channel lock; if the channel is disconnected in the meantime, a subsequent reference to th...

kernel: tls: race between async notify and socket close

A race condition vulnerability was found in the tls subsystem of the Linux kernel. The submitting thread that calls recvmsg/sendmsg may exit as soon as the async crypto handler calls complete; any code past that point risks touching already freed data. This could lead to a use-after-free issue an...

kernel: af_unix: Fix data-race around unix_tot_inflight

A data race condition was found in the Linux kernel's AFUNIX socket implementation. The unixtotinflight variable is modified under spinlockunixgclock but read without synchronization in unixreleasesock. This was detected by KCSAN Kernel Concurrency Sanitizer. The fix adds READONCE to ensure prope...

Moderate: sssd security and bug fix update

The System Security Services Daemon SSSD service provides a set of daemons to manage access to remote directories and authentication mechanisms. It also provides the Name Service Switch NSS and the Pluggable Authentication Modules PAM interfaces toward the system, and a pluggable back-end system ...

ALSA-2024:2571 Moderate: sssd security and bug fix update

The System Security Services Daemon SSSD service provides a set of daemons to manage access to remote directories and authentication mechanisms. It also provides the Name Service Switch NSS and the Pluggable Authentication Modules PAM interfaces toward the system, and a pluggable back-end system ...

CVE-2022-48651

In the Linux kernel, the following vulnerability has been resolved: ipvlan: Fix out-of-bound bugs caused by unset skb-macheader If an AFPACKET socket is used to send packets through ipvlan and the default xmit function of the AFPACKET socket is changed from devqueuexmit to packetdirectxmit via...