CVE-2026-53036

In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fix off-by-one in checkimm signed range check checkimmbits, imm is used in the arm64 BPF JIT to verify that a branch displacement in arm64 instruction units fits into the signed N-bit immediate field of a B, B.cond or...

CVE-2026-53035

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix afunix iter deadlock bpfiterunixseqshow may deadlock when locksockfast takes the fast path and the iter prog attempts to update a sockmap. Which ends up spinning at sockmapupdateelem's bhlocksock: WARNING:...

CVE-2026-52997

In the Linux kernel, the following vulnerability has been resolved: net/sched: schdualpi2: drain both C-queue and L-queue in dualpi2change Fix dualpi2change to correctly enforce updated limit and memlimit values after a configuration change of the dualpi2 qdisc. Before this patch, dualpi2change...

CVE-2026-53055

In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/sec2 - prevent req used-after-free for sec During packet transmission, if the system is under heavy load, the hardware might complete processing the packet and free the request memory req before the transmission...

CVE-2026-53092

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix linked reg delta tracking when srcreg == dstreg Consider the case of rX += rX where srcreg and dstreg are pointers to the same bpfregstate in adjustregminmaxvals. The latter first modifies the dstreg in-place, and later ...

CVE-2026-53070

In the Linux kernel, the following vulnerability has been resolved: sctp: disable BH before calling udptunnelxmitskb udptunnelxmitskb / udptunnel6xmitskb are expected to run with BH disabled. After commit 6f1a9140ecda "add xmit recursion limit to tunnel xmit functions", on the path:...

CVE-2026-52994

In the Linux kernel, the following vulnerability has been resolved: vsock/virtio: fix MSGZEROCOPY pinned-pages accounting virtiotransportinitzcopyskb uses iter-count as the size argument for msgzerocopyrealloc, which in turn passes it to mmaccountpinnedpages for RLIMITMEMLOCK accounting. However,...

CVE-2026-53080

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsfw: fix NULL dereference of "old" filters before change Like pointed out by Sashiko 1, since commit ed76f5edccc9 "net: sched: protect filterchain list with filterchainlock mutex" TC filters are added to a shared blo...

CVE-2026-53033

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Take state lock for afunix iter When a BPF iterator program updates a sockmap, there is a race condition in unixstreambpfupdateproto where the peer pointer can become stale1 during a state transition TCPESTABLISHED ...

CVE-2026-53111

In the Linux kernel, the following vulnerability has been resolved: bpf: testrun: Fix the null pointer dereference issue in bpflwtxmitpushencap The bpflwtxmitpushencap helper needs to access skbdstskb-dev to calculate the needed headroom: err = skbcowheadskb, len + LLRESERVEDSPACEskbdstskb-dev; B...

CVE-2026-53089

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix use-after-free in offloaded map/prog info fill When querying info for an offloaded BPF map or program, bpfmapoffloadinfofillns and bpfprogoffloadinfofillns obtain the network namespace with getnetdevnetoffmap-netdev...

CVE-2026-53031

In the Linux kernel, the following vulnerability has been resolved: bpf: Validate nodeid in arenaallocpages arenaallocpages accepts a plain int nodeid and forwards it through the entire allocation chain without any bounds checking. Validate nodeid before passing it down the allocation chain in...

CVE-2026-53074

In the Linux kernel, the following vulnerability has been resolved: bpf: reject short IPv4/IPv6 inputs in bpfprogtestrunskb bpfprogtestrunskb calls ethtypetrans first and then uses skb-protocol to initialize sk family and address fields for the test run. For IPv4 and IPv6 packets, it may access...

EUVD-2026-38978

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Zero-extend bpf prog return values and kfunc arguments s390x ABI requires callers to zero-extend unsigned arguments and sign-extend signed arguments, and callees to zero-extend unsigned return values and sign-extend...

CVE-2026-53096 bpf: Use RCU-safe iteration in dev_map_redirect_multi() SKB path

In the Linux kernel, the following vulnerability has been resolved: bpf: Use RCU-safe iteration in devmapredirectmulti SKB path The DEVMAPHASH branch in devmapredirectmulti uses hlistforeachentrysafe to iterate hash buckets, but this function runs under RCU protection called from...

CVE-2026-53094

The CVE affects the Linux kernel BPF/JIT path for dev-bound-only XDP programs. When constant blinding is enabled (bpf_jit_harden >= 2), bpf_jit_blind_constants() clones the program and bpf_jit_prog_release_other() frees the original, but offload->prog isn’t updated, leaving a stale pointer....

CVE-2026-53092 bpf: Fix linked reg delta tracking when src_reg == dst_reg

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix linked reg delta tracking when srcreg == dstreg Consider the case of rX += rX where srcreg and dstreg are pointers to the same bpfregstate in adjustregminmaxvals. The latter first modifies the dstreg in-place, and later ...

EUVD-2026-38959

In the Linux kernel, the following vulnerability has been resolved: net: pull headers in qdiscpktlensegsinit Most ndostartxmit methods expects headers of gso packets to be already in skb-head. net/core/tso.c users are particularly at risk, because tsobuildhdr does a memcpyhdr, skb-data, hdrlen;...

CVE-2026-53091 net: pull headers in qdisc_pkt_len_segs_init()

In the Linux kernel, the following vulnerability has been resolved: net: pull headers in qdiscpktlensegsinit Most ndostartxmit methods expects headers of gso packets to be already in skb-head. net/core/tso.c users are particularly at risk, because tsobuildhdr does a memcpyhdr, skb-data, hdrlen;...

CVE-2026-53091

The CVE-2026-53091 issue concerns the Linux kernel’s handling of GSO packet headers during qdisc_pkt_len_segs_init(). The root cause is that many ndo_start_xmit() paths assume headers are already in skb->head, while tso_build_hdr() may copy from skb->data, and qdisc_pkt_len_segs_init() diss...