CVE-2026-68154 libceph: reject zero bucket types in crush_decode

In the Linux kernel, the following vulnerability has been resolved: libceph: reject zero bucket types in crushdecode CRUSH bucket type 0 is reserved for devices. The mapper relies on that invariant and uses type 0 to identify leaf devices. If crushdecode accepts a bucket with type 0, a malformed...

CVE-2026-68153 libceph: remove debugfs files before client teardown

In the Linux kernel, the following vulnerability has been resolved: libceph: remove debugfs files before client teardown cephdestroyclient tears down the monitor client before removing the per-client debugfs files. A concurrent read of the monmap debugfs file can enter monmapshow after cephmoncst...

CVE-2026-68152 amt: fix use-after-free in AMT delayed works

In the Linux kernel, the following vulnerability has been resolved: amt: fix use-after-free in AMT delayed works When an AMT device is removed, pending delayed works can still access the freed amtdev structure, which may result in kernel crashes or memory corruption. amtdevstop cancels reqwq and...

EUVD-2026-55537

In the Linux kernel, the following vulnerability has been resolved: binfmtelffdpic: only honour the first PTINTERP The program header scan handles PTINTERP from a switch nested in the scan loop, so its break leaves the switch and not the loop. A binary carrying more than one PTINTERP runs the cas...

CVE-2026-68151

The CVE-2026-68151 entry concerns the Linux kernel FDPIC ELF binary format driver (binfmt_elf_fdpic). The flaw arises in how the program header scan handles PT_INTERP: the code may break out of the inner switch rather than the outer loop, causing binaries with more than one PT_INTERP to overwrite...

CVE-2026-68151 binfmt_elf_fdpic: only honour the first PT_INTERP

In the Linux kernel, the following vulnerability has been resolved: binfmtelffdpic: only honour the first PTINTERP The program header scan handles PTINTERP from a switch nested in the scan loop, so its break leaves the switch and not the loop. A binary carrying more than one PTINTERP runs the cas...

CVE-2026-68151

In the Linux kernel, the following vulnerability has been resolved: binfmtelffdpic: only honour the first PTINTERP The program header scan handles PTINTERP from a switch nested in the scan loop, so its break leaves the switch and not the loop. A binary carrying more than one PTINTERP runs the cas...

CVE-2026-68151 binfmt_elf_fdpic: only honour the first PT_INTERP

In the Linux kernel, the following vulnerability has been resolved: binfmtelffdpic: only honour the first PTINTERP The program header scan handles PTINTERP from a switch nested in the scan loop, so its break leaves the switch and not the loop. A binary carrying more than one PTINTERP runs the cas...

CVE-2026-68150 fs/super: fix emergency thaw double-unlock of s_umount

In the Linux kernel, the following vulnerability has been resolved: fs/super: fix emergency thaw double-unlock of sumount dothawall iterates over all superblocks via iteratesupers with SUPERITEREXCL, which acquires sumount exclusively before calling the callback and releases it afterwards. Howeve...

CVE-2026-68149 fs: preserve ACL_DONT_CACHE state in forget_cached_acl()

In the Linux kernel, the following vulnerability has been resolved: fs: preserve ACLDONTCACHE state in forgetcachedacl The ACLDONTCACHE state is meant to be a constant state for the inode for filesystems that want to opt out of posix acl caching. Commit facd61053cff1 "fuse: fixes after adapting t...

CVE-2026-68148 fscrypt: Add missing superblock check in find_or_insert_direct_key()

In the Linux kernel, the following vulnerability has been resolved: fscrypt: Add missing superblock check in findorinsertdirectkey The legacy 'fscryptdirectkeys' table caches master keys that are used by v1 encryption policies that have FSCRYPTPOLICYFLAGDIRECTKEY. It's just a global table for all...

CVE-2026-68147 fscrypt: Avoid dynamic allocation in fscrypt_get_devices()

In the Linux kernel, the following vulnerability has been resolved: fscrypt: Avoid dynamic allocation in fscryptgetdevices When a blkcryptokey starts being used or is evicted, fs/crypto/ calls fscryptgetdevices to get the filesystem's list of block devices, then iterates over them and calls...

CVE-2026-68146 ftrace: Add global mutex to serialize trace_parser access

In the Linux kernel, the following vulnerability has been resolved: ftrace: Add global mutex to serialize traceparser access In ftrace, the traceparser structure is allocated and initialized when a trace file is opened, and is subsequently used across write and release handlers to parse user inpu...

CVE-2026-68145 iomap: fix out-of-bounds bitmap_set() with zero-length range

In the Linux kernel, the following vulnerability has been resolved: iomap: fix out-of-bounds bitmapset with zero-length range ifssetrangedirty and ifssetrangeuptodate compute lastblk as off + len - 1 iblkbits. When off is 0 and len is 0, the unsigned subtraction underflows to SIZEMAX, producing a...

CVE-2026-68144 phonet: pep: fix use-after-free in pep_get_sb()

In the Linux kernel, the following vulnerability has been resolved: phonet: pep: fix use-after-free in pepgetsb pepgetsb doesn't consider that pskbmaypull might have relocated the skb data, and continue to access the older pointer, causing UAF. Reproduced under KASAN: BUG: KASAN:...

CVE-2026-68143 net: slip: serialize receive against buffer reallocation

In the Linux kernel, the following vulnerability has been resolved: net: slip: serialize receive against buffer reallocation slreallocbufs replaces rbuff and updates buffsize while holding sl-lock. slipreceivebuf reads those fields and writes through rbuff without holding the lock. An MTU change...

CVE-2026-68142 geneve: require CAP_NET_ADMIN in the device netns for changelink

In the Linux kernel, the following vulnerability has been resolved: geneve: require CAPNETADMIN in the device netns for changelink A tunnel changelink operates on at most two netns, devnetdev and the sticky underlay netns geneve-net. They differ once the device is created in or moved to a netns...

CVE-2026-68141 net/af_iucv: fix NULL deref in afiucv_hs_callback_syn()

In the Linux kernel, the following vulnerability has been resolved: net/afiucv: fix NULL deref in afiucvhscallbacksyn afiucvhscallbacksyn allocates the child socket with GFPATOMIC. If the allocation fails, nsk is NULL. The connection-refused path is entered when the listen state check fails, the...

CVE-2026-68140 net/iucv: fix use-after-free of a severed iucv_path

In the Linux kernel, the following vulnerability has been resolved: net/iucv: fix use-after-free of a severed iucvpath afiucv queues not-yet-received message notifications on iucv-messageq, each holding a raw pointer to the connection's iucvpath. When the peer severs the connection, iucvseverpath...

CVE-2026-68139 net/mlx5e: Use sender devcom for MPV master-up

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Use sender devcom for MPV master-up After PCIe DPC recovery, mlx5 reloads the affected functions and replays multiport affiliation events. In the reported failure, the first relevant device error was: pcieport...