CVE-2026-98048: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: don't rewrite bpffastcall patterns entered by a jump markfastcallpatternforcall must ensure that matched "spill; call; fill" instruction series is not interrupted by a jump. Otherwise the rewrite applied by...

Linux Distros Unpatched Vulnerability : CVE-2026-98059

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Mark schedprocesswait argument as nullable dowait passes wo-wopid to the schedprocesswait tracepoint. kernelwait4 leaves wopid NULL for wait4-1, and...

Linux Distros Unpatched Vulnerability : CVE-2026-98084

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: backtracking shouldn't clear outer frame R1-R5 for callbacks When processing calls to bpfloop verifier marks R1 and R4 as precise. R1 tracks loop iteration...

Linux Distros Unpatched Vulnerability : CVE-2026-98060

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Reject resilient lock operations in rbtree callbacks bpfrbtreeadd keeps parent and link pointers live across calls to the program-supplied comparison...

CVE-2026-98075: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: reject BPFPSEUDOFUNC reference to the main program fixups.c:jitsubprogs rewrites BPFPSEUDOFUNC loads to contain real function addresses. This function is invoked from bpfjitsubprogs only when env-subprogcnt 1. Meaning that f...

PT-2026-98738

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the BPF Berkeley Packet Filter subsystem where the jit subprogs function in fixups.c fails to rewrite BPF PSEUDO FUNC loads to contain real function addresses when the...

CVE-2026-98075

In the Linux kernel, the following vulnerability has been resolved: bpf: reject BPFPSEUDOFUNC reference to the main program fixups.c:jitsubprogs rewrites BPFPSEUDOFUNC loads to contain real function addresses. This function is invoked from bpfjitsubprogs only when env-subprogcnt 1. Meaning that f...

PT-2026-98711

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the BPF Berkeley Packet Filter subsystem where the mark fastcall pattern for call function fails to ensure that a matched "spill; call; fill" instruction series is not...

CVE-2026-98150: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix BPFFCPU validation for sparse CPU IDs BPFFCPU stores the target CPU ID in the upper 32 bits of the map operation flags. bpfmapcheckopflags currently compares that ID with numpossiblecpus, which is the number of possible...

CVE-2026-98040: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark the zero register precise for a register-form NULL check checkcondjmpop accepts "if rA rB" as a NULL check for a nullable pointer rA when rB is a scalar known to be zero, lifts PTRMAYBENULL from rA in the corresponding...

CVE-2026-98040

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark the zero register precise for a register-form NULL check checkcondjmpop accepts "if rA rB" as a NULL check for a nullable pointer rA when rB is a scalar known to be zero, lifts PTRMAYBENULL from rA in the corresponding...

CVE-2026-98044: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject legacy packet loads from callbacks checkldabs models a failed BPFLDABS or BPFLDIND in a subprogram as an implicit return with R0 set to zero. It calls preparefuncexit to explore this synthesized path. When the load is...

CVE-2026-98065: Undefined Security Weakness

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, ...

CVE-2026-98036: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve special fields in recycled rhtab elements rhtabmapupdateelem initializes special fields after obtaining an element from bpfmemcachealloc. The allocator can return a fresh, zeroed unit, or recycle one from its...

CVE-2026-98035

In the Linux kernel, the following vulnerability has been resolved: bpf: Cancel special fields when recycling rhtab elements rhtabmapupdateexisting and rhtabdeleteelem call bpfobjfreefields when replacing or deleting a value. These map operations can run from BPF programs in NMI context, where...

CVE-2026-98036

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve special fields in recycled rhtab elements rhtabmapupdateelem initializes special fields after obtaining an element from bpfmemcachealloc. The allocator can return a fresh, zeroed unit, or recycle one from its...

CVE-2026-98046: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark bpfbtffindbynamekind as sleepable When bpfbtffindbynamekind finds a type in module BTF, it returns a new BTF object fd through btfnewfd. This reaches anoninodegetfd, which can sleep while allocating or expanding the...

Linux Distros Unpatched Vulnerability : CVE-2026-98039

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Require MEMPERCPU for percpu kptr stores mapkptrmatchtype treats permflags as the set of register type flags that a kptr field permits. Adding MEMPERCPU to...

Linux Distros Unpatched Vulnerability : CVE-2026-98061

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Reject tail calls directly from callback frames A tail call from a non-zero frame is modeled as a return from that frame. The verifier makes R0 unknown and...

Linux Distros Unpatched Vulnerability : CVE-2026-98042

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: bpf: Don't resurrect a scalar id dropped by collectlinkedregs checkcondjmpop copies the...