UBUNTU-CVE-2026-98038

In the Linux kernel, the following vulnerability has been resolved: bpf: Keep refcountacquire nullable for borrowed RCU kptrs bpfrefcountacquire is fallible for a borrowed reference because the object may have reached a zero refcount. The verifier therefore keeps KFRETNULL on the return value...

UBUNTU-CVE-2026-97980

In the Linux kernel, the following vulnerability has been resolved: s390/debug: Fix NULL pointer dereference in debugsetlevel Commit a2cec6863709 "s390/debug: Add s390dbf kernel parameter" incorrectly removed a null-id check from debugsetlevel, introducing a possible NULL pointer dereference for...

UBUNTU-CVE-2026-97601

In the Linux kernel, the following vulnerability has been resolved: ieee802154: 6lowpan: fix NULL dereference in lowpannewlink TUNSETLINK allows a TUN device to change its link-layer type to ARPHRDIEEE802154 without initializing ieee802154ptr. lowpannewlink checks only the device type before...

UBUNTU-CVE-2026-98121

In the Linux kernel, the following vulnerability has been resolved: watchdog: msc313e: Fix NULL pointer dereference in PM callbacks msc313ewdtprobe doesn't set the driver data for the platform device. As a result, devgetdrvdata in msc313ewdtsuspend and msc313ewdtresume will return NULL, leading t...

UBUNTU-CVE-2026-97532

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Null out freed pointers in qla2x00memalloc error path When qla2x00memalloc fails, qla2x00probeone jumps to probehwfailed and calls qla2x00memfree. Several error labels in qla2x00memalloc freed adapter members...

UBUNTU-CVE-2026-98043

In the Linux kernel, the following vulnerability has been resolved: bpf: Don't infer non-NULL from a pointer with an unbounded offset regnotnull decides that a register holds a non-NULL value by looking at its type alone. For pointer types that allow arithmetic the type only guarantees a non-NULL...

UBUNTU-CVE-2026-98065

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject key-less BTF for hash maps mapcheckbtf allows a key-less BTF btfkeytypeid == 0 only for maps that have a -mapcheckbtf callback, and leaves the actual decision to that callback. Hash maps used to have no -mapcheckbtf, ...

UBUNTU-CVE-2026-97989

In the Linux kernel, the following vulnerability has been resolved: vduse: validate virtqueue alignment vdusevalidateconfig only checks the upper bound of vqalign. Invalid values can therefore reach vringcreatevirtqueuemap. The split-ring helpers use align - 1 as a bit mask, so the alignment must...

CVE-2026-98134

In the Linux kernel, the following vulnerability has been resolved: bpf: checkcondjmpop: properly infer if register is null Nicholas Carlini reported a bug when verifier can incorrectly infer that a pointer is non-null. The bug occurs when two pointers are compared and one of them has a type w/o...

EUVD-2026-86965

In the Linux kernel, the following vulnerability has been resolved: bpf: checkcondjmpop: properly infer if register is null Nicholas Carlini reported a bug when verifier can incorrectly infer that a pointer is non-null. The bug occurs when two pointers are compared and one of them has a type w/o...

CVE-2026-98134 bpf: check_cond_jmp_op(): properly infer if register is null

In the Linux kernel, the following vulnerability has been resolved: bpf: checkcondjmpop: properly infer if register is null Nicholas Carlini reported a bug when verifier can incorrectly infer that a pointer is non-null. The bug occurs when two pointers are compared and one of them has a type w/o...

CVE-2026-98134 bpf: check_cond_jmp_op(): properly infer if register is null

In the Linux kernel, the following vulnerability has been resolved: bpf: checkcondjmpop: properly infer if register is null Nicholas Carlini reported a bug when verifier can incorrectly infer that a pointer is non-null. The bug occurs when two pointers are compared and one of them has a type w/o...

CVE-2026-98134

A flaw in the Linux kernel's Berkeley Packet Filter (BPF) verifier allows it to incorrectly infer that a pointer is non-null when it can actually be null at runtime. This occurs during pointer register comparisons (e.g., rA == rB) when one pointer's type lacks the PTR_MAYBE_NULL flag but still al...

CVE-2026-98129

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix NULL pointer dereference in mpi3mrsasportadd sasportallocnum can return NULL on memory allocation failure. The return value is passed directly to sasportadd without a NULL check, which causes a NULL pointer...

CVE-2026-98129

The Linux kernel is vulnerable to a NULL pointer dereference within the mpi3mr_sas_port_add() function of the scsi: mpi3mr driver. The issue arises because sas_port_alloc_num() can return NULL during memory allocation failure, and this value is passed directly to sas_port_add() without a precedin...

CVE-2026-98129 scsi: mpi3mr: Fix NULL pointer dereference in mpi3mr_sas_port_add()

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix NULL pointer dereference in mpi3mrsasportadd sasportallocnum can return NULL on memory allocation failure. The return value is passed directly to sasportadd without a NULL check, which causes a NULL pointer...

EUVD-2026-86960

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix NULL pointer dereference in mpi3mrsasportadd sasportallocnum can return NULL on memory allocation failure. The return value is passed directly to sasportadd without a NULL check, which causes a NULL pointer...

CVE-2026-98129 scsi: mpi3mr: Fix NULL pointer dereference in mpi3mr_sas_port_add()

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix NULL pointer dereference in mpi3mrsasportadd sasportallocnum can return NULL on memory allocation failure. The return value is passed directly to sasportadd without a NULL check, which causes a NULL pointer...

CVE-2026-98121

In the Linux kernel, the following vulnerability has been resolved: watchdog: msc313e: Fix NULL pointer dereference in PM callbacks msc313ewdtprobe doesn't set the driver data for the platform device. As a result, devgetdrvdata in msc313ewdtsuspend and msc313ewdtresume will return NULL, leading t...

CVE-2026-98121 watchdog: msc313e: Fix NULL pointer dereference in PM callbacks

In the Linux kernel, the following vulnerability has been resolved: watchdog: msc313e: Fix NULL pointer dereference in PM callbacks msc313ewdtprobe doesn't set the driver data for the platform device. As a result, devgetdrvdata in msc313ewdtsuspend and msc313ewdtresume will return NULL, leading t...