kernel: net: bridge: use a stable FDB dst snapshot in RCU readers

A flaw was found in the Linux kernel. Inconsistent handling of local Forwarding Database FDB entries in the bridge networking component's RCU Read-Copy-Update readers can lead to a null-pointer dereference. A local attacker could exploit this by triggering a concurrent update to an FDB entry,...

kernel: scsi: qla2xxx: Bound rsp_info_len to avoid OOB sense-data read

A flaw was found in the Linux kernel's scsi: qla2xxx driver. A remote attacker, by sending a specially crafted Fibre Channel Protocol FCP response, could cause an integer underflow. This underflow leads to an out-of-bounds read when handling sense data, potentially disclosing sensitive memory...

SUSE CVE-2026-99015

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisock: Serialize dead-device detachment Rebinding an HCI socket after its controller is unregistered can race monitor control replay and crash the kernel. hcisockbind clears hcipisk-hdev and drops the device referenc...

SUSE CVE-2026-99036

In the Linux kernel, the following vulnerability has been resolved: dm: fix reading free memory in doresume When doresume calls dmtablegetmodenewmap, the call is done without holding any locks it only holds a reference to the md. It may be possible that another concurrent ioctl on the same device...

SUSE CVE-2026-99042

In the Linux kernel, the following vulnerability has been resolved: iouring/net: populate CONNECT filter fields for 24-byte sockaddrin6 ioconnectbpfpopulate fills connect.port and connect.v6addr for AFINET6 only when addrlen = sizeofstruct sockaddrin6, i.e. 28 bytes. The IPv6 connect paths accept...

kernel-CTF

Kernel CTF Challenges A collection of Linux Kernel exploitation challenges for learning kernel security concepts. Requirements Linux system tested on Ubuntu Build essentials gcc, make Linux headers for your kernel version sudo apt-get update sudo apt-get install build-essential linux-headers-$una...

Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel versions prior to 7.2.13. It arises because ntfsnewattrflags reduces the size of non-in-place attribute records before clearing compressed or sparse states; this causes memmove to copy bytes from subsequent attributes, resulting in a malformed mappi...

Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel version 7.0. It stems from a failure to invoke wakeuppreempt on queued tasks during changes to the scheduler class, resulting in runnable tasks being left unrescheduled and potentially causing the CPU to become idle...

Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel version 6.19. It stems from mshvvtlfault, which checks only the global mshvhasregpage flag without examining the register page of the selected CPU. This may lead to a null pointer dereference in getpageNULL when a mapping failure occurs in user spac...

Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel version 6.19. It stems from dwmac1000 failing to clear RGMII state interrupts, which can lead to an interrupt storm caused by pending interrupt states. This prevents recovery threads from running, potentially resulting in soft lockouts, watchdog...

CVE-2026-99193

In the Linux kernel, the following vulnerability has been resolved: net: ti: icssm-prueth: Move setting of netops to fix crash icssmpruethnetdevinit calls ofphygetandconnect before ndev-netdevops is assigned. phyattachdirect - phylinktopoaddphy reads dev-netdevops through netdevneedopslock since...

CVE-2026-99141

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix crash in printgraphfunctionevent tracingsettracer assigns the flags of the newly selected tracer with: tr-currenttraceflags = t-flags ? : t-tracer-flags; If the new tracer defines neither static flags nor default...

CVE-2026-99144: Linux: In the Linux kernel, the following vulnerability has been resolved: sched_ext: Fix use-after-free of a destroyed user…

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix use-after-free of a destroyed user DSQ by a deferred reenqueue A deferred reenqueue can read a freed user DSQ. The request stays on its CPU's deferred list until rundeferred takes it, and the RCU callback that frees...

CVE-2026-99140

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix hist trigger timestamps for buffered events Syzkaller triggered a WARNONONCE!nest warning: WARNING: kernel/trace/ringbuffer.c:821 at ringbuffereventtimestamp Call trace: ringbuffereventtimestamp histfieldtimestamp...

CVE-2026-99159

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix the sub-buffer array base in rbmetasubbufidx On a persistent ring buffer, rbmetasubbufidx can return an index one sub-buffer too high. rbsetupidsmetapage then fills subbufids shifted by one and leaves subbufids0...

CVE-2026-99129

In the Linux kernel, the following vulnerability has been resolved: selinux: fix BPF token permission checks Avoid multiple lookups of the bpffs creator SID using the token's file descriptor when the same information can be found via the resolved path/dentry in selinuxbpftokencreate or the token...

CVE-2026-99177

In the Linux kernel, the following vulnerability has been resolved: KVM: SEV: Fix page dirtying in sevgmempostpopulate setpagedirty requires that the caller holds some kind of lock to ensure that the page's mapping does not concurrently go away. That is not the case for a random page we got from...

CVE-2026-99213

In the Linux kernel, the following vulnerability has been resolved: vsock: treat TCPCLOSING as once-established Handle the TCPESTABLISHED - TCPCLOSING transition on OPRST, which can race with the connect loop. Immediately break and return 0 on ESTABLISHED/CLOSING. The return value of connect shou...

CVE-2026-99204

In the Linux kernel, the following vulnerability has been resolved: ocfs2/dlm: Protect the recovery list during debugfs reads Recovery participant records must remain alive while debugstateprint walks reco.nodedata and formats their fields. The formatter holds dlm-spinlock, but the recovery...

CVE-2026-99130

In the Linux kernel, the following vulnerability has been resolved: iouring/cancel: don't spin on local work the task can't run iouringcancelgeneric refuses to sleep while any ring on the exiting task's tctx has local work pending. It assumes the task is that ring's submitter and that the next...