CVE-2026-74668

CVE-2026-74668 affects the Linux kernel's packet socket subsystem in the TX_RING send path. The function tpacket_snd() reads dev->hard_header_len independently for skb allocation and header construction in tpacket_fill_skb(). A concurrent netdevice reconfiguration can cause the reserved headro...

EUVD-2026-64586

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix missing shared-key auth challenge length check The WEP shared-key authentication handler uses the challenge-text element's attacker-controlled length without checking it against the fixed 128-byte chgtxt...

CVE-2026-74649

A missing length validation in the Linux kernel rtl8723bs staging driver's WEP shared-key authentication handler (OnAuthClient()) allows a malicious Access Point to send a malformed WLAN_EID_CHALLENGE element with a length up to 255 bytes, which is then copied via memcpy() into a fixed 128-byte c...

CVE-2026-74649 staging: rtl8723bs: fix missing shared-key auth challenge length check

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix missing shared-key auth challenge length check The WEP shared-key authentication handler uses the challenge-text element's attacker-controlled length without checking it against the fixed 128-byte chgtxt...

CVE-2026-74649 staging: rtl8723bs: fix missing shared-key auth challenge length check

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix missing shared-key auth challenge length check The WEP shared-key authentication handler uses the challenge-text element's attacker-controlled length without checking it against the fixed 128-byte chgtxt...

EUVD-2026-64577

In the Linux kernel, the following vulnerability has been resolved: ALSA: FCP: fix OOB write in fcpmeterctlget fcpioctlsetmetermap bounds the user-supplied Level Meter map size by the driver's own limit of 255 if map.mapsize 255 || map.meterslots 255 return -EINVAL; and passes it to fcpaddnewctl ...

CVE-2026-74640

This is an out-of-bounds write in the Linux kernel's ALSA FCP (FireWire Control Protocol) driver, specifically in fcp_meter_ctl_get(). The root cause is a mismatch: fcp_ioctl_set_meter_map() permits a Level Meter map size up to 255 , but the destination buffer struct snd_ctl_elem_value declares l...

CVE-2026-74640 ALSA: FCP: fix OOB write in fcp_meter_ctl_get()

In the Linux kernel, the following vulnerability has been resolved: ALSA: FCP: fix OOB write in fcpmeterctlget fcpioctlsetmetermap bounds the user-supplied Level Meter map size by the driver's own limit of 255 if map.mapsize 255 || map.meterslots 255 return -EINVAL; and passes it to fcpaddnewctl ...

EUVD-2026-64547

In the Linux kernel, the following vulnerability has been resolved: tls: don't leave a full plaintext skmsg ring unpushed When the copy path in tlsswsendmsglocked adds the fragment that fills the plaintext skmsg ring, it does not set fullrecord, so the record is left full and unpushed. A later...

EUVD-2026-64537

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: skip special zero mappings pagetablecheckset and pagetablecheckclear account mappings based on PageAnon. Shared zero-page PTEs and huge zero PMDs are special mappings, but pagetablecheck can still account them ...

CVE-2026-74600 mm/page_table_check: skip special zero mappings

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: skip special zero mappings pagetablecheckset and pagetablecheckclear account mappings based on PageAnon. Shared zero-page PTEs and huge zero PMDs are special mappings, but pagetablecheck can still account them ...

CVE-2026-74600 mm/page_table_check: skip special zero mappings

In the Linux kernel, the following vulnerability has been resolved: mm/pagetablecheck: skip special zero mappings pagetablecheckset and pagetablecheckclear account mappings based on PageAnon. Shared zero-page PTEs and huge zero PMDs are special mappings, but pagetablecheck can still account them ...

CVE-2026-68767

hashcat's fgetl function in src/filehandling.c writes a null terminator one byte past the caller's buffer when an input line is exactly the buffer length. Attackers can trigger this out-of-bounds heap write by providing a hash file, potfile, or wordlist containing a line of exactly HCBUFSIZLARGE...

CVE-2026-68768

hashcat contains a heap-based buffer overflow out-of-bounds write in the outfilewrite function in src/outfile.c. When assembling output into a fixed-size buffer HCBUFSIZLARGE, 16 MB, the function sequentially appends the username, separator, hash, and plaintext via memcpy without validating that...

CVE-2026-68768 hashcat through 7.1.2 Heap Buffer Overflow in outfile_write() via Oversized Username

hashcat contains a heap-based buffer overflow out-of-bounds write in the outfilewrite function in src/outfile.c. When assembling output into a fixed-size buffer HCBUFSIZLARGE, 16 MB, the function sequentially appends the username, separator, hash, and plaintext via memcpy without validating that...

CVE-2026-68768

hashcat contains a heap-based buffer overflow out-of-bounds write in the outfilewrite function in src/outfile.c. When assembling output into a fixed-size buffer HCBUFSIZLARGE, 16 MB, the function sequentially appends the username, separator, hash, and plaintext via memcpy without validating that...

EUVD-2026-64313

hashcat contains a heap-based buffer overflow out-of-bounds write in the outfilewrite function in src/outfile.c. When assembling output into a fixed-size buffer HCBUFSIZLARGE, 16 MB, the function sequentially appends the username, separator, hash, and plaintext via memcpy without validating that...

CVE-2026-68768

hashcat through 7.1.2 is affected by a heap buffer overflow in the outfile_write() function (src/outfile.c). When assembling output into a fixed-size buffer (~16 MB), the function appends the username, separator, hash, and plaintext via memcpy without validating that the accumulated length stays ...

CVE-2026-68768 hashcat through 7.1.2 Heap Buffer Overflow in outfile_write() via Oversized Username

hashcat contains a heap-based buffer overflow out-of-bounds write in the outfilewrite function in src/outfile.c. When assembling output into a fixed-size buffer HCBUFSIZLARGE, 16 MB, the function sequentially appends the username, separator, hash, and plaintext via memcpy without validating that...

CVE-2026-68767 hashcat through 7.1.2 Off-by-One Out-of-Bounds Heap Write in fgetl()

hashcat's fgetl function in src/filehandling.c writes a null terminator one byte past the caller's buffer when an input line is exactly the buffer length. Attackers can trigger this out-of-bounds heap write by providing a hash file, potfile, or wordlist containing a line of exactly HCBUFSIZLARGE...