CVE-2026-64151 iommupt: Check for missing PAGE_SIZE in the pgsize_bitmap

In the Linux kernel, the following vulnerability has been resolved: iommupt: Check for missing PAGESIZE in the pgsizebitmap Sashiko pointed out that the driver could drop PAGESIZE from the pgsizebitmap. That is technically allowed but nothing does it, and such an iommudomain would not be used wit...

CVE-2026-64149 dma-mapping: move dma_map_resource() sanity check into debug code

In the Linux kernel, the following vulnerability has been resolved: dma-mapping: move dmamapresource sanity check into debug code dmamapresource uses pfnvalid to ensure the range is not RAM. However, pfnvalid only checks for availability of the memory map for a PFN but it does not ensure that the...

CVE-2026-64147 pds_core: fix debugfs_lookup dentry leak and error handling

In the Linux kernel, the following vulnerability has been resolved: pdscore: fix debugfslookup dentry leak and error handling debugfslookup returns a dentry with an elevated reference count that must be released with dput. The current code discards the returned dentry without calling dput, causin...

CVE-2026-64148 pds_core: fix error handling in pdsc_devcmd_wait

In the Linux kernel, the following vulnerability has been resolved: pdscore: fix error handling in pdscdevcmdwait Fix two cases where pdscdevcmdwait returns stale success from the completion register instead of an error: 1. FW crash: If firmware stops running, the wait loop breaks early with...

CVE-2026-64146 erofs: fix metabuf leak in inode xattr initialization

In the Linux kernel, the following vulnerability has been resolved: erofs: fix metabuf leak in inode xattr initialization commit bb88e8da0025 "erofs: use meta buffers for xattr operations" converted xattr operations to use on-stack erofsbuf instances. erofsinitinodexattrs uses such a metabuf whil...

CVE-2026-64144 Bluetooth: btmtk: fix urb->setup_packet leak in error paths

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: btmtk: fix urb-setuppacket leak in error paths The setuppacket of control urb is not freed if usbsubmiturb fails or the submitted urb is killed. Add free in these two paths...

CVE-2026-64145 wifi: wilc1000: fix dma_buffer leak on bus acquire failure

In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: fix dmabuffer leak on bus acquire failure wilcwlanfirmwaredownload allocates dmabuffer with kmalloc at the top of the function and uses a 'fail:' label to free it via kfreedmabuffer on error. All later error paths...

CVE-2026-64143 platform/x86: uniwill-laptop: Do not enable the charging limit even when forced

In the Linux kernel, the following vulnerability has been resolved: platform/x86: uniwill-laptop: Do not enable the charging limit even when forced It seems that on some older models 2020 the battery charging limit can permanently damage the battery. Prevent users from enabling this feature thru...

CVE-2026-64142 ksmbd: close durable scavenger races against m_fp_list lookups

In the Linux kernel, the following vulnerability has been resolved: ksmbd: close durable scavenger races against mfplist lookups ksmbddurablescavenger has two related races against any walker that iterates fci-mfplist, including ksmbdlookupfdinode used by ksmbdvfsrename and the share-mode checks ...

CVE-2026-64141 ksmbd: fix null pointer dereference in compare_guid_key()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in compareguidkey sessionfdcheck walks the per-inode moplist during durable-handle session teardown and sets op-conn = NULL for every opinfo whose conn matched the closing session's connection...

CVE-2026-64140 ksmbd: fix null pointer dereference in proc_show_files()

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference in procshowfiles When a SMB2 client opens a file with a durable v2 handle and then issues SMB2 SESSIONLOGOFF, sessionfdcheck clears fp-tcon = NULL on the reconnectable file pointer but leaves t...

CVE-2026-64139 ksmbd: fix SID memory leak in set_posix_acl_entries_dacl() on overflow

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix SID memory leak in setposixaclentriesdacl on overflow Commit 299f962c0b02 "ksmbd: use checkaddoverflow to prevent u16 DACL size overflow" added checkaddoverflow guards that break out of the ACE-building loops in...

CVE-2026-64138 ksmbd: validate SID in parent security descriptor during ACL inheritance

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate SID in parent security descriptor during ACL inheritance Introduce smbvalidatentsdsid helper to safely validate Owner SID and Group SID inside the NT Security Descriptor smbntsd retrieved from the parent directory...

CVE-2026-64137 smb: client: require net admin for CIFS SWN netlink

In the Linux kernel, the following vulnerability has been resolved: smb: client: require net admin for CIFS SWN netlink CIFSGENLCMDSWNNOTIFY is the userspace witness-notify command. The intended sender is the cifs.witness helper, but the generic-netlink operation currently has no capability flag,...

CVE-2026-64136 smb: client: protect tc_count increment in smb2_find_smb_sess_tcon_unlocked()

In the Linux kernel, the following vulnerability has been resolved: smb: client: protect tccount increment in smb2findsmbsesstconunlocked Commit 96c4af418586 "cifs: Fix locking usage for tcon fields" refactored cifs code to change cifstcpseslock for tclock around tccount changes. There was missin...

CVE-2026-64135 hwmon: (pmbus/adm1266) widen blackbox-info buffer to I2C_SMBUS_BLOCK_MAX

In the Linux kernel, the following vulnerability has been resolved: hwmon: pmbus/adm1266 widen blackbox-info buffer to I2CSMBUSBLOCKMAX adm1266nvmemreadblackbox declares a 5-byte stack buffer and passes it to i2csmbusreadblockdata to retrieve the 4-byte BLACKBOXINFO response. i2csmbusreadblockdat...

CVE-2026-64134 ALSA: pcm: Don't setup bogus iov_iter for silencing

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Don't setup bogus ioviter for silencing At transition to the ioviter for PCM data transfer, we blindly applied the ioviter setup also for silencing i.e. data = NULL, and it leads to a calculation of bogus ioviter...

CVE-2026-64133 ALSA: asihpi: Fix potential OOB array access at reading cache

In the Linux kernel, the following vulnerability has been resolved: ALSA: asihpi: Fix potential OOB array access at reading cache findcontrol to retrieve a cached info accesses the array with the given index blindly, which may lead to an OOB array access. Add a sanity check for avoiding it...

CVE-2026-64132 ipv6: ioam: refresh hdr pointer before ioam6_event()

In the Linux kernel, the following vulnerability has been resolved: ipv6: ioam: refresh hdr pointer before ioam6event Reported by Sashiko: In ipv6hopioam, the hdr pointer is initialized to point into the skb's linear data buffer. Later, the code calls skbensurewritable, which might reallocate the...

CVE-2026-64130 mm/page_alloc: fix initialization of tags of the huge zero folio with init_on_free

In the Linux kernel, the following vulnerability has been resolved: mm/pagealloc: fix initialization of tags of the huge zero folio with initonfree GFPZEROTAGS semantics are currently a bit weird, but effectively this flag is only ever set alongside GFPZERO and GFPSKIPKASAN. If we run with...