UBUNTU-CVE-2026-43396

In the Linux kernel, the following vulnerability has been resolved: drm/xe/sync: Fix user fence leak on alloc failure When dmafencechainalloc fails, properly release the user fence reference to prevent a memory leak. cherry picked from commit a5d5634cde48a9fcd68c8504aa07f89f175074a0...

CVE-2026-43464

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: RX, Fix XDP multi-buf frag counting for legacy RQ XDP multi-buf programs can modify the layout of the XDP buffer when the program calls bpfxdppulldata or bpfxdpadjusttail. The referenced commit in the fixes tag correct...

CVE-2026-43464 net/mlx5e: RX, Fix XDP multi-buf frag counting for legacy RQ

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: RX, Fix XDP multi-buf frag counting for legacy RQ XDP multi-buf programs can modify the layout of the XDP buffer when the program calls bpfxdppulldata or bpfxdpadjusttail. The referenced commit in the fixes tag correct...

CVE-2026-43464 net/mlx5e: RX, Fix XDP multi-buf frag counting for legacy RQ

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: RX, Fix XDP multi-buf frag counting for legacy RQ XDP multi-buf programs can modify the layout of the XDP buffer when the program calls bpfxdppulldata or bpfxdpadjusttail. The referenced commit in the fixes tag correct...

CVE-2026-43458 serial: caif: hold tty->link reference in ldisc_open and ser_release

In the Linux kernel, the following vulnerability has been resolved: serial: caif: hold tty-link reference in ldiscopen and serrelease A reproducer triggers a KASAN slab-use-after-free in ptywriteroom when caifserial's TX path calls ttywriteroom. The faulting access is on tty-link-port. Hold an...

CVE-2026-43458

In the Linux kernel, the following vulnerability has been resolved: serial: caif: hold tty-link reference in ldiscopen and serrelease A reproducer triggers a KASAN slab-use-after-free in ptywriteroom when caifserial's TX path calls ttywriteroom. The faulting access is on tty-link-port. Hold an...

CVE-2026-43458

In the Linux kernel, the following vulnerability has been resolved: serial: caif: hold tty-link reference in ldiscopen and serrelease A reproducer triggers a KASAN slab-use-after-free in ptywriteroom when caifserial's TX path calls ttywriteroom. The faulting access is on tty-link-port. Hold an...

CVE-2026-43458 serial: caif: hold tty->link reference in ldisc_open and ser_release

In the Linux kernel, the following vulnerability has been resolved: serial: caif: hold tty-link reference in ldiscopen and serrelease A reproducer triggers a KASAN slab-use-after-free in ptywriteroom when caifserial's TX path calls ttywriteroom. The faulting access is on tty-link-port. Hold an...

CVE-2026-43438 sched_ext: Remove redundant css_put() in scx_cgroup_init()

In the Linux kernel, the following vulnerability has been resolved: schedext: Remove redundant cssput in scxcgroupinit The iterator cssforeachdescendantpre walks the cgroup hierarchy under cgrouplock. It does not increment the reference counts on yielded css structs. According to the cgroup...

CVE-2026-43414 scsi: qla2xxx: Completely fix fcport double free

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Completely fix fcport double free In qla24xxelsdcmdiocb sp-free is set to qla2x00elsdcmdspfree. When an error happens, this function is called by qla2x00sprelease, when krefput releases the first and the last...

CVE-2026-43399

CVE-2026-43399 affects the Linux kernel amdgpu driver: a reference leak in amdgpu_userq_wait_ioctl occurs when an ioctl is aborted because the output array is too small. The fix drops references to syncobj and timeline fence during abort, and is cherry-picked from commit 68951e9c3e6bb22396bc42ef2...

CVE-2026-43399 drm/amdgpu/userq: Fix reference leak in amdgpu_userq_wait_ioctl

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/userq: Fix reference leak in amdgpuuserqwaitioctl Drop reference to syncobj and timeline fence when aborting the ioctl due output array being too small. cherry picked from commit 68951e9c3e6bb22396bc42ef2359751c8315dd2...

CVE-2026-43399 drm/amdgpu/userq: Fix reference leak in amdgpu_userq_wait_ioctl

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/userq: Fix reference leak in amdgpuuserqwaitioctl Drop reference to syncobj and timeline fence when aborting the ioctl due output array being too small. cherry picked from commit 68951e9c3e6bb22396bc42ef2359751c8315dd2...

CVE-2026-43399

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/userq: Fix reference leak in amdgpuuserqwaitioctl Drop reference to syncobj and timeline fence when aborting the ioctl due output array being too small. cherry picked from commit 68951e9c3e6bb22396bc42ef2359751c8315dd2...

CVE-2026-43396

In the Linux kernel, the vulnerability CVE-2026-43396 is in the drm/xe/sync path. When dma_fence_chain_alloc() fails, the user fence reference is not released, causing a memory leak. Documented across multiple sources (Red Hat, SUSE, Ubuntu, Debian OSV entries, and NVD), the issue is fixed by the...

CVE-2026-43395 drm/xe/sync: Cleanup partially initialized sync on parse failure

In the Linux kernel, the following vulnerability has been resolved: drm/xe/sync: Cleanup partially initialized sync on parse failure xesyncentryparse can allocate references syncobj, fence, chain fence, or user fence before hitting a later failure path. Several of those paths returned directly,...

CVE-2026-43394

CVE-2026-43394 (Linux kernel) : A local credential reference leak in nfsd_nl_listener_set_doit() occurs because get_current_cred() is used without a corresponding put_cred(). The function runs in process context during sendmsg(), and current->cred remains valid, so the extra refcount is unnece...

CVE-2026-43395 drm/xe/sync: Cleanup partially initialized sync on parse failure

In the Linux kernel, the following vulnerability has been resolved: drm/xe/sync: Cleanup partially initialized sync on parse failure xesyncentryparse can allocate references syncobj, fence, chain fence, or user fence before hitting a later failure path. Several of those paths returned directly,...

CVE-2026-43375

CVE-2026-43375 concerns the Linux kernel in the MCTP path. A leak occurs during probe failures because the driver saves a reference to the USB device but fails to release it on error paths. The fix drops the redundant device reference to prevent memory leaks when the probe fails, simplifying driv...

CVE-2026-43355

CVE-2026-43355 affects the Linux kernel bh1780 light sensor driver (iio: light). The root cause is a PM runtime reference-count leak: pm_runtime_put_autosuspend() was not guaranteed to run after pm_runtime_get_sync() if the read operation failed. The fixed response moves the autosuspend call befo...