CVE-2026-89674 nfsd: fix XDR length calculation in nfsd4_ff_encode_layoutget

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix XDR length calculation in nfsd4ffencodelayoutget The XDR buffer size calculation in nfsd4ffencodelayoutget has multiple errors that can result in either an out-of-bounds write or leaking uninitialized kernel memory to t...

CVE-2026-89674

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix XDR length calculation in nfsd4ffencodelayoutget The XDR buffer size calculation in nfsd4ffencodelayoutget has multiple errors that can result in either an out-of-bounds write or leaking uninitialized kernel memory to t...

CVE-2026-89674

A flaw in the Linux kernel nfsd component, specifically in the nfsd4_ff_encode_layoutget() function, involves multiple errors in XDR buffer size calculations. The errors cause either an out-of-bounds write (up to 5 bytes past the reserved buffer when short strings like uid=0/gid=0 are combined wi...

CVE-2026-89667

CVE-2026-89667 is a race condition in the Linux kernel's nfsd file cache subsystem. When the shrinker, GC worker, or fsnotify/lease callbacks unhash an nfsd_file and queue it for delayed disposal concurrently with nfsd_file_cache_shutdown_net(), the shutdown path can miss the file and drain the d...

CVE-2026-89667 nfsd: close shrinker/GC/fsnotify vs per-net shutdown race in filecache

In the Linux kernel, the following vulnerability has been resolved: nfsd: close shrinker/GC/fsnotify vs per-net shutdown race in filecache The shrinker, GC worker, and fsnotify/lease callbacks can unhash an nfsdfile from the rhashtable and then call nfsdfiledisposelistdelayed to move it to the...

CVE-2026-89667 nfsd: close shrinker/GC/fsnotify vs per-net shutdown race in filecache

In the Linux kernel, the following vulnerability has been resolved: nfsd: close shrinker/GC/fsnotify vs per-net shutdown race in filecache The shrinker, GC worker, and fsnotify/lease callbacks can unhash an nfsdfile from the rhashtable and then call nfsdfiledisposelistdelayed to move it to the...

EUVD-2026-76579

In the Linux kernel, the following vulnerability has been resolved: nfsd: close shrinker/GC/fsnotify vs per-net shutdown race in filecache The shrinker, GC worker, and fsnotify/lease callbacks can unhash an nfsdfile from the rhashtable and then call nfsdfiledisposelistdelayed to move it to the...

CVE-2026-89667

In the Linux kernel, the following vulnerability has been resolved: nfsd: close shrinker/GC/fsnotify vs per-net shutdown race in filecache The shrinker, GC worker, and fsnotify/lease callbacks can unhash an nfsdfile from the rhashtable and then call nfsdfiledisposelistdelayed to move it to the...

CVE-2026-89664

In the Linux kernel, the following vulnerability has been resolved: nfsd: release OPEN-decoded posix ACLs via oprelease nfsd4decodecreatehow4 calls nfsd4decodefattr4, which allocates refcounted struct posixacl objects via posixaclalloc and stores them in open-oppacl and open-opdpacl. These pointe...

CVE-2026-89664

CVE-2026-89664 affects the Linux kernel NFS daemon (nfsd) and causes a memory leak of refcounted POSIX ACL objects. The leak occurs when malformed NFSv4 OPEN compound operations carrying valid POSIX ACL attributes trigger a short-circuit path in nfsd4_open_omfg() where nfsd4_open() is never invok...

CVE-2026-89664 nfsd: release OPEN-decoded posix ACLs via op_release

In the Linux kernel, the following vulnerability has been resolved: nfsd: release OPEN-decoded posix ACLs via oprelease nfsd4decodecreatehow4 calls nfsd4decodefattr4, which allocates refcounted struct posixacl objects via posixaclalloc and stores them in open-oppacl and open-opdpacl. These pointe...

CVE-2026-89645 btrfs: drop recovered reloc root refs on recovery failure

In the Linux kernel, the following vulnerability has been resolved: btrfs: drop recovered reloc root refs on recovery failure During relocation recovery, each fs root gets a reference to its relocation root. If loading or adding a later root fails, or if the first transaction commit fails,...

EUVD-2026-76539

In the Linux kernel, the following vulnerability has been resolved: HID: roccat: free buffered reports when destroying device roccatreportevent duplicates each report with kmemdup and stores the allocation in a circular-buffer slot. The allocation is released only when that slot is reused. The...

CVE-2026-89627

CVE-2026-89627 affects the Linux kernel 's HID roccat driver. The root cause is a memory leak : roccat_report_event() duplicates each report via kmemdup() into a circular buffer (cbuf[]), but the device destruction paths free struct roccat_device without releasing reports still stored in those sl...

CVE-2026-89627 HID: roccat: free buffered reports when destroying device

In the Linux kernel, the following vulnerability has been resolved: HID: roccat: free buffered reports when destroying device roccatreportevent duplicates each report with kmemdup and stores the allocation in a circular-buffer slot. The allocation is released only when that slot is reused. The...

CVE-2026-89627

In the Linux kernel, the following vulnerability has been resolved: HID: roccat: free buffered reports when destroying device roccatreportevent duplicates each report with kmemdup and stores the allocation in a circular-buffer slot. The allocation is released only when that slot is reused. The...

CVE-2026-89627 HID: roccat: free buffered reports when destroying device

In the Linux kernel, the following vulnerability has been resolved: HID: roccat: free buffered reports when destroying device roccatreportevent duplicates each report with kmemdup and stores the allocation in a circular-buffer slot. The allocation is released only when that slot is reused. The...

EUVD-2026-76533

In the Linux kernel, the following vulnerability has been resolved: HID: mcp2221: validate report size in mcp2221rawevent mcp2221rawevent never validates the size of incoming HID reports. In the MCP2221I2CGETDATA path it trusts the device-supplied data3 as the copy length without checking that 4 ...

CVE-2026-89621

CVE-2026-89621 is a Linux kernel vulnerability in the HID mcp2221 driver's mcp2221_raw_event() function. The function fails to validate the size of incoming HID reports in the MCP2221_I2C_GET_DATA path, trusting a device-supplied data[3] field as the copy length without verifying that 4 + data[3]...

CVE-2026-89621 HID: mcp2221: validate report size in mcp2221_raw_event()

In the Linux kernel, the following vulnerability has been resolved: HID: mcp2221: validate report size in mcp2221rawevent mcp2221rawevent never validates the size of incoming HID reports. In the MCP2221I2CGETDATA path it trusts the device-supplied data3 as the copy length without checking that 4 ...