EUVD-2026-59641

In the Linux kernel, the following vulnerability has been resolved: mm/slab: prevent unbounded recursion in free path with new kmalloc type Commit 280ea9c3154b "mm/slab: avoid allocating slabobjext array from its own slab" avoided recursive allocation of objexts from kmalloc caches of the same...

CVE-2026-74576 mm/slab: prevent unbounded recursion in free path with new kmalloc type

In the Linux kernel, the following vulnerability has been resolved: mm/slab: prevent unbounded recursion in free path with new kmalloc type Commit 280ea9c3154b "mm/slab: avoid allocating slabobjext array from its own slab" avoided recursive allocation of objexts from kmalloc caches of the same...

CVE-2026-74575 thunderbolt: Prevent XDomain delayed work use-after-free on disconnect

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Prevent XDomain delayed work use-after-free on disconnect tbxdphandlerequest runs on systemwq and queues xd-statework via queuedelayedwork in three request handlers: PROPERTIESCHANGEDREQUEST, UUIDREQUEST via...

CVE-2026-74574 dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev_open()

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fix fdev setup failure cleanup in idxdcdevopen The faileddevadd and faileddevname paths drop the file-device reference while wq-wqlock is still held. If putdevicefdev drops the last reference, idxdfiledevrelease...

CVE-2026-74573 iommu/arm-smmu-v3-iommufd: Require exactly one Stream ID for a vDEVICE

In the Linux kernel, the following vulnerability has been resolved: iommu/arm-smmu-v3-iommufd: Require exactly one Stream ID for a vDEVICE armvsmmuvsidtosid maps a guest's vSID to a single physical Stream ID taken from master-streams0, assuming a device has exactly one stream. A device with sever...

CVE-2026-74572 btrfs: zoned: fix deadlock between metadata writeback and transaction commit

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: fix deadlock between metadata writeback and transaction commit When writing out metadata extent buffers in a zoned filesystem, btreewritepages holds fsinfo-zonedmetaiolock across the whole writeback loop, including...

CVE-2026-74570 ntfs: harden runlist realloc size calculations

In the Linux kernel, the following vulnerability has been resolved: ntfs: harden runlist realloc size calculations Add a shared helper to safely convert runlist element counts to byte sizes using overflow checks, and use it in both ntfsrlrealloc and ntfsrlreallocnofail...

CVE-2026-74571 btrfs: skip global block reserve accounting for rescue mounts

In the Linux kernel, the following vulnerability has been resolved: btrfs: skip global block reserve accounting for rescue mounts BUG Mounting with rescue=ibadroots after corrupting the block group tree root triggers a NULL pointer dereference: BUG: kernel NULL pointer dereference, address:...

CVE-2026-74569 netfilter: nf_conntrack_sip: widen NAT rewrite delta to s32 in sip_help_tcp()

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntracksip: widen NAT rewrite delta to s32 in siphelptcp siphelptcp stores the size change of each NAT-rewritten SIP message in s16 diff and accumulates it in s16 tdiff, but a single message can grow by more than...

CVE-2026-74568 KVM: arm64: vgic: Fix race between LPI release and re-registration

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic: Fix race between LPI release and re-registration Fix a potential race between decrementing an LPI's reference count and evicting that structure from the LPI xarray. LPI structures are maintained in the VGIC LPI...

CVE-2026-74567 keys: fix out-of-bounds read in keyring_get_key_chunk()

In the Linux kernel, the following vulnerability has been resolved: keys: fix out-of-bounds read in keyringgetkeychunk For description-level chunks keyringgetkeychunk advances the read pointer by level sizeoflong past the inline prefix but only bounds-checks the prefix, so a long enough key...

CVE-2026-74565 netfilter: nf_tables: make nft_object rhltable per table

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: make nftobject rhltable per table The nftobject rhltable is global, this allows for accessing objects that are being dismangled from lookup path by other existing netns. Given the nftobjdestroy releases the...

CVE-2026-74566 keys: make keyring key-chunk byte order agree with keyring_diff_objects()

In the Linux kernel, the following vulnerability has been resolved: keys: make keyring key-chunk byte order agree with keyringdiffobjects keyringgetkeychunk loads description bytes into the index chunk low address first, while keyringdiffobjects numbers the first differing bit from the low end an...

CVE-2026-74564 netfilter: xt_hashlimit: validate hashtable supports XT_HASHLIMIT_RATE_MATCH

In the Linux kernel, the following vulnerability has been resolved: netfilter: xthashlimit: validate hashtable supports XTHASHLIMITRATEMATCH The XTHASHLIMITRATEMATCH flag mode changes the semantics of the dsthashent structure which represents an entry in the hashtable. There is a union area which...

CVE-2026-74563 rds: tcp: hold the RCU lock across ipv6_chk_addr() in rds_tcp_laddr_check()

In the Linux kernel, the following vulnerability has been resolved: rds: tcp: hold the RCU lock across ipv6chkaddr in rdstcpladdrcheck rdstcpladdrcheck looks up a scoped IPv6 interface with devgetbyindexrcu, drops the RCU read-side lock, and only then passes the bare struct netdevice into...

CVE-2026-74562 nexthop: take nh->lock for f6i_list walks in replace check and notify

In the Linux kernel, the following vulnerability has been resolved: nexthop: take nh-lock for f6ilist walks in replace check and notify fib6checknhlist and nexthopreplacenotify walk nh-f6ilist during an RTNL-serialized nexthop replace without holding nh-lock. IPv6 RTMNEWROUTE/RTMDELROUTE run...

CVE-2026-74561 nexthop: avoid unlocked f6i_list walk in nh_rt_cache_flush

In the Linux kernel, the following vulnerability has been resolved: nexthop: avoid unlocked f6ilist walk in nhrtcacheflush nhrtcacheflush walks nh-f6ilist during an RTNL-serialized nexthop replace without holding nh-lock, racing the unlocked IPv6 route add/delete that mutate the list under nh-loc...

CVE-2026-74559 xsk: drain continuation descs after overflow in xsk_build_skb()

In the Linux kernel, the following vulnerability has been resolved: xsk: drain continuation descs after overflow in xskbuildskb Fix generic xmit path multi-buffer logic when packets are either too big count of descriptors exceed MAXSKBFRAGS or an invalid descriptor is included in fragmented packe...

CVE-2026-74560 xsk: fix buffer leak in xsk_drop_skb() for AF_XDP multi-buffer Tx

In the Linux kernel, the following vulnerability has been resolved: xsk: fix buffer leak in xskdropskb for AFXDP multi-buffer Tx This patch is inspired by the check1 from sashiko. It says when overflow happens, the address of cq to be published is invalid. Actually the severer thing is the whole...

CVE-2026-74558 xsk: reclaim invalid Tx descriptors in ZC batch path

In the Linux kernel, the following vulnerability has been resolved: xsk: reclaim invalid Tx descriptors in ZC batch path The zero-copy Tx batch parser stops when it encounters an invalid descriptor. If this happens after one or more continuation descriptors, the Tx consumer can be advanced past...