PT-2026-55986

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description Memory corruption occurs when processing multiple IOCTL Input/Output Control calls that use the same buffer file descriptor input. This issue is caused by a...

kernel: mptcp: fix slab-use-after-free in __inet_lookup_established

A flaw was found in the Linux kernel's Multipath TCP MPTCP implementation. Due to incorrect memory allocation for IPv6 subflow child sockets, a use-after-free vulnerability exists. A remote attacker could exploit this by triggering concurrent lookups in the kernel's hash table, potentially leadin...

CVE-2026-10653

The Zephyr netbuf library lib/netbuf/buf.c manipulated both of its reference counts -- the per-header buf-ref and the per-data-block refcount at the start of each variable/heap data allocation -- with plain non-atomic C operators buf-ref++, if --buf-ref 0, if --refcount. The API is documented as...

[SECURITY] Fedora 43 Update: nginx-1.30.3-1.fc43

Nginx is a web server and a reverse proxy server for HTTP, SMTP, POP3 and IMAP protocols, with a strong focus on high concurrency, performance and low memory usage...

CVE-2026-53303

In the Linux kernel, the following vulnerability has been resolved: f2fs: protect extensionlist reading with sblock in f2fssbishow In f2fssbishow, the extensionlist, extensioncount and hotextcount are read without holding sbi-sblock. If a concurrent sysfs store modifies the extension list via...

EUVD-2026-39838

In the Linux kernel, the following vulnerability has been resolved: f2fs: protect extensionlist reading with sblock in f2fssbishow In f2fssbishow, the extensionlist, extensioncount and hotextcount are read without holding sbi-sblock. If a concurrent sysfs store modifies the extension list via...

CVE-2026-53303

In the Linux kernel, the following vulnerability has been resolved: f2fs: protect extensionlist reading with sblock in f2fssbishow In f2fssbishow, the extensionlist, extensioncount and hotextcount are read without holding sbi-sblock. If a concurrent sysfs store modifies the extension list via...

GO-2026-5228 Juju: In-Memory Token Store for Discharge Tokens Lacks Concurrency Safety and Persistence in github.com/juju/juju

Juju: In-Memory Token Store for Discharge Tokens Lacks Concurrency Safety and Persistence in github.com/juju/juju...

CVE-2026-52988

A flaw was found in the Linux kernel's netfilter component. This vulnerability involves a concurrency issue during updates to netfilter rulesets. When multiple updates occur simultaneously, improper synchronization could lead to unsafe data access during netlink dump list traversal. This could...

CVE-2026-53259

In the Linux kernel, the following vulnerability has been resolved: ipv6: anycast: insert aca into global hash under idev-lock syzbot reported a splat 1: a slab-use-after-free in ipv6chkacastaddr, which walks the global inet6acaddrlst hash under RCU and dereferences a struct ifacaddr6 that has...

CVE-2026-53153

In the Linux kernel, the following vulnerability has been resolved: mm/listlru: drain before clearing xarray entry on reparent memcgreparentlistlrus clears the dying memcg's xarray entry with xasstore&xas, NULL before reparenting its per-node lists into the parent. This opens a window where a...

UBUNTU-CVE-2026-53269

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: add mutex to guard hook reference counting As the synproxy infrastructure register netfilter hooks on-demand when a user adds the first iptables target or nftables expression, if done concurrently they can ra...

CVE-2026-53269

In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: add mutex to guard hook reference counting As the synproxy infrastructure register netfilter hooks on-demand when a user adds the first iptables target or nftables expression, if done concurrently they can ra...

CVE-2026-53265

The CVE-2026-53265 entry describes a Linux kernel race in the dm-cache policy SMQ path. A check-then-act race occurs in smq_invalidate_mapping where an e->allocated check was left outside the mq->lock after the destructive section was serialized; two concurrent invalidators can observe allo...

CVE-2026-53242 ALSA: PCM: Fix wait queue list corruption in snd_pcm_drain() on linked streams

In the Linux kernel, the following vulnerability has been resolved: ALSA: PCM: Fix wait queue list corruption in sndpcmdrain on linked streams sndpcmdrain uses initwaitqueueentry which does not clear entry.prev/next, and addwaitqueue with a conditional removewaitqueue that is skipped when tocheck...

CVE-2026-53240 xfrm: iptfs: fix use-after-free on first_skb in __input_process_payload

In the Linux kernel, the following vulnerability has been resolved: xfrm: iptfs: fix use-after-free on firstskb in inputprocesspayload inputprocesspayload stores firstskb into xtfs-ranewskb under droplock when starting partial reassembly, then unlocks and breaks out of the processing loop. The...

CVE-2026-53153

CVE-2026-53153 affects the Linux kernel memcg list_lru path. A race during memcg_reparent_list_lrus() clears the dying memcg’s xarray entry before reparenting per-node lists, letting concurrent list_lru_del/walk operate on the parent and corrupt next/prev pointers. The fix reverses the order: rep...

EUVD-2026-39244

In the Linux kernel, the following vulnerability has been resolved: mm/listlru: drain before clearing xarray entry on reparent memcgreparentlistlrus clears the dying memcg's xarray entry with xasstore&xas, NULL before reparenting its per-node lists into the parent. This opens a window where a...

UBUNTU-CVE-2026-54904

concurrent-ruby is a modern concurrency tools for Ruby. Prior to 1.3.7, Concurrent::AtomicReferenceupdate can enter a permanent busy retry loop when the current value is Float::NAN. The issue is caused by the interaction between AtomicReferenceupdate, which retries until compareandsetoldvalue,...

CVE-2026-53071

CVE-2026-53071 concerns the Linux kernel Bluetooth L2CAP implementation. The flaw arises when l2cap_ecred_reconf_rsp() deletes a channel without holding l2cap_chan_lock(), unlike other callers which acquire the lock first. This can allow a remote BLE device to corrupt the channel list while anoth...