CVE-2025-40240 sctp: avoid NULL dereference when chunk data buffer is missing

In the Linux kernel, the following vulnerability has been resolved: sctp: avoid NULL dereference when chunk data buffer is missing chunk-skb pointer is dereferenced in the if-block where it's supposed to be NULL only. chunk-skb can only be NULL if chunk-headskb is not. Check for fraglist instead...

CVE-2025-40240 sctp: avoid NULL dereference when chunk data buffer is missing

In the Linux kernel, the following vulnerability has been resolved: sctp: avoid NULL dereference when chunk data buffer is missing chunk-skb pointer is dereferenced in the if-block where it's supposed to be NULL only. chunk-skb can only be NULL if chunk-headskb is not. Check for fraglist instead...

CVE-2025-40240 sctp: avoid NULL dereference when chunk data buffer is missing

In the Linux kernel, the following vulnerability has been resolved: sctp: avoid NULL dereference when chunk data buffer is missing chunk-skb pointer is dereferenced in the if-block where it's supposed to be NULL only. chunk-skb can only be NULL if chunk-headskb is not. Check for fraglist instead...

kernel: skbuff: skb_segment, Call zero copy functions before using skbuff frags

In the Linux kernel, the following vulnerability has been resolved: skbuff: skbsegment, Call zero copy functions before using skbuff frags Commit bf5c25d60861 "skbuff: in skbsegment, call zerocopy functions once per nskb" added the call to zero copy functions in skbsegment. The change introduced ...

Oracle Linux 10 : ELSA-2025-20095-0: / kernel (ELSA-2025-200950)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-200950 advisory. - selftests: tls: add tests for zero-length records CKI Backport Bot RHEL-114328 CVE-2025-39682 - tls: fix handling of zero-length records on the...

kernel: skbuff: skb_segment, Call zero copy functions before using skbuff frags

In the Linux kernel, the following vulnerability has been resolved: skbuff: skbsegment, Call zero copy functions before using skbuff frags Commit bf5c25d60861 "skbuff: in skbsegment, call zerocopy functions once per nskb" added the call to zero copy functions in skbsegment. The change introduced ...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-990764)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990764 advisory. In the Linux kernel, the following vulnerability has been resolved: net: gso: fix panic on fraglist with mixed head alloc types Since commit 3dcbdb134f32 net: gso: F...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989458)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989458 advisory. In the Linux kernel, the following vulnerability has been resolved: IB/mlx5: Fix initializing CQ fragments buffer The function initcqfragbuf can be called to...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

IEEE P802.11-REVme D1.1 through D7.0 allow FragAttacks against mesh networks. In mesh networks that use Wi-Fi Protected Access WPA, WPA2, or WPA3 or Wired Equivalent Privacy WEP, an adversary can exploit this vulnerability to inject arbitrary frames towards devices that support receiving non-SSP...

SUSE CVE-2025-40046

In the Linux kernel, the following vulnerability has been resolved: iouring/zcrx: fix overshooting recv limit It's reported that sometimes a zcrx request can receive more than was requested. It's caused by iozcrxrecvskb adjusting desc-count for all received buffers including frag lists, but then...

CVE-2025-40046

In the Linux kernel, the following vulnerability has been resolved: iouring/zcrx: fix overshooting recv limit It's reported that sometimes a zcrx request can receive more than was requested. It's caused by iozcrxrecvskb adjusting desc-count for all received buffers including frag lists, but then...

UBUNTU-CVE-2025-40046

In the Linux kernel, the following vulnerability has been resolved: iouring/zcrx: fix overshooting recv limit It's reported that sometimes a zcrx request can receive more than was requested. It's caused by iozcrxrecvskb adjusting desc-count for all received buffers including frag lists, but then...

EUVD-2025-36482

In the Linux kernel, the following vulnerability has been resolved: iouring/zcrx: fix overshooting recv limit It's reported that sometimes a zcrx request can receive more than was requested. It's caused by iozcrxrecvskb adjusting desc-count for all received buffers including frag lists, but then...

CVE-2025-40046 io_uring/zcrx: fix overshooting recv limit

In the Linux kernel, the following vulnerability has been resolved: iouring/zcrx: fix overshooting recv limit It's reported that sometimes a zcrx request can receive more than was requested. It's caused by iozcrxrecvskb adjusting desc-count for all received buffers including frag lists, but then...

CVE-2025-40046

CVE-2025-40046 is a Linux kernel vulnerability in the io_uring zcrx path. The issue arises from io_zcrx_recv_skb() double-counting desc->count when handling frag lists, causing a recv limit overrun (buffers total > requested). This could impact availability (high) with limited confidentiali...

CVE-2025-40046 io_uring/zcrx: fix overshooting recv limit

In the Linux kernel, the following vulnerability has been resolved: iouring/zcrx: fix overshooting recv limit It's reported that sometimes a zcrx request can receive more than was requested. It's caused by iozcrxrecvskb adjusting desc-count for all received buffers including frag lists, but then...

PT-2025-49067

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to the Socket Communication Transport Protocol SCTP. Specifically, a potential NULL dereference can occur when a chunk data buffer is missing. T...

RLSA-2025:17776 Moderate: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: HID: core: Harden s32ton against conversion to 0 bits CVE-2025-38556 kernel: wifi: ath12k: Decrement TID on RX peer frag setup error handling CVE-2025-39761 kernel: ALSA: usb-audio:...

CVE-2023-53679

CVE-2023-53679 affects the Linux kernel wifi driver mt7601u. The issue is an integer underflow in the RX path that can lead to a null pointer dereference in mt7601u_rx_skb_from_seg() when dma_len is manipulated, enabling seg_len underflow in mt7601u_rx_process_seg() and bypassing bad_frame checks...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986674)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986674 advisory. In the Linux kernel, the following vulnerability has been resolved: IB/mlx5: Fix initializing CQ fragments buffer The function initcqfragbuf can be called to...