UBUNTU-CVE-2026-53251

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix not releasing hdev reference on isoconnbigsync hcigetroute returns a reference-counted hcidev pointer via hcidevhold. The function exits normally or with an error without ever releasing it...

UBUNTU-CVE-2026-53276

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix a use-after-free of the hciconn pointer In isosockrebindbc, the bis pointer is cached, then the socket lock is dropped: bis = isopisk-conn-hcon; / Release the socket before lookups since that requires hcidevlo...

CVE-2026-53155

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: use correct flags for device private PMD entry Commit 65edfda6f3f2 "mm/rmap: extend rmap and migration support device-private entries" updated setpmdmigrationentry to use pmdphugegetandclear in the softleaf case, b...

CVE-2026-53157

In the Linux kernel, the following vulnerability has been resolved: net: phonet: free phonetdevice after RCU grace period phonetdevicedestroy removes a phonetdevice from the per-net device list with listdelrcu, but frees it immediately. RCU readers walking the same list can still hold a pointer t...

UBUNTU-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-2026-53196

In the Linux kernel, the following vulnerability has been resolved: USB: serial: ioti: fix heap overflow in getmanufinfo getmanufinfo reads le16tocpuromdesc-Size bytes from the device I2C EEPROM into a buffer allocated with kmallocobj, which is sizeofstruct edgetimanufdescriptor = 10 bytes. The...

UBUNTU-CVE-2026-53234

In the Linux kernel, the following vulnerability has been resolved: net: ibm: emac: Fix use-after-free during device removal The driver was using devmregisternetdev which causes unregisternetdev to be deferred until the devres cleanup phase, which runs after emacremove returns. This creates a...

UBUNTU-CVE-2026-53252

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix memory leak in error path of hciallocdev Early failures in Bluetooth HCI UART configuration leak SRCU percpu memory. When device initialization fails before hciregisterdev completes, the HCIUNREGISTER flag is never...

CVE-2026-53131

In the Linux kernel, the following vulnerability has been resolved: netfilter: require Ethernet MAC header before using ethhdr ip6teui64, xtmac, the bitmap:ip,mac, hash:ip,mac, and hash:mac ipset types, and nflogsyslog access ethhdrskb after either assuming that the skb is associated with an...

UBUNTU-CVE-2026-53233

In the Linux kernel, the following vulnerability has been resolved: netdev: fix double-free in netdevnlbindrxdoit Sashiko flags that genlmsgreply always consumes the skb. The error path calls nlmsgfreersp so we can't jump directly to it. Let's not unbind, just propagate the error to the user. Thi...

CVE-2026-53276

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix a use-after-free of the hciconn pointer In isosockrebindbc, the bis pointer is cached, then the socket lock is dropped: bis = isopisk-conn-hcon; / Release the socket before lookups since that requires hcidevlo...

CVE-2026-53276

The CVE-2026-53276 entry concerns the Linux kernel Bluetooth ISO stack. A use-after-free occurs in iso_sock_rebind_bc where the bis pointer is cached and the socket lock is released before traversals, allowing a concurrent close() to free the hci_conn and its bis structure. The code then accesses...

EUVD-2026-39227

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix a use-after-free of the hciconn pointer In isosockrebindbc, the bis pointer is cached, then the socket lock is dropped: bis = isopisk-conn-hcon; / Release the socket before lookups since that requires hcidevlo...

CVE-2026-53265 dm cache policy smq: check allocation under invalidate lock

In the Linux kernel, the following vulnerability has been resolved: dm cache policy smq: check allocation under invalidate lock commit 2d1f7b65f5de "dm cache policy smq: fix missing locks in invalidating cache blocks" added mq-lock around the destructive part of smqinvalidatemapping, but left the...

CVE-2026-53265 dm cache policy smq: check allocation under invalidate lock

In the Linux kernel, the following vulnerability has been resolved: dm cache policy smq: check allocation under invalidate lock commit 2d1f7b65f5de "dm cache policy smq: fix missing locks in invalidating cache blocks" added mq-lock around the destructive part of smqinvalidatemapping, but left the...

CVE-2026-53265

In the Linux kernel, the following vulnerability has been resolved: dm cache policy smq: check allocation under invalidate lock commit 2d1f7b65f5de "dm cache policy smq: fix missing locks in invalidating cache blocks" added mq-lock around the destructive part of smqinvalidatemapping, but left the...

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...

EUVD-2026-39210

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-2026-53252 Bluetooth: fix memory leak in error path of hci_alloc_dev()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix memory leak in error path of hciallocdev Early failures in Bluetooth HCI UART configuration leak SRCU percpu memory. When device initialization fails before hciregisterdev completes, the HCIUNREGISTER flag is never...

CVE-2026-53252

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix memory leak in error path of hciallocdev Early failures in Bluetooth HCI UART configuration leak SRCU percpu memory. When device initialization fails before hciregisterdev completes, the HCIUNREGISTER flag is never...