CVE-2023-53667

In the Linux kernel, the following vulnerability has been resolved: net: cdcncm: Deal with too low values of dwNtbOutMaxSize Currently in cdcncmchecktxmax, if dwNtbOutMaxSize is lower than the calculated "min" value, but greater than zero, the logic sets txmax to dwNtbOutMaxSize. This is then use...

CVE-2023-53660

In the Linux kernel, the following vulnerability has been resolved: bpf, cpumap: Handle skb as well when clean up ptrring The following warning was reported when running xdpredirectcpu with both skb-mode and stress-mode enabled: ------------ cut here ------------ Incorrect XDP memory type...

CVE-2023-53641

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: hifusb: fix memory leak of remainskbs hifdev-remainskb is allocated and used exclusively in ath9khifusbrxstream. It is implied that an allocated remainskb is processed and subsequently freed in error paths only durin...

UBUNTU-CVE-2023-53667

In the Linux kernel, the following vulnerability has been resolved: net: cdcncm: Deal with too low values of dwNtbOutMaxSize Currently in cdcncmchecktxmax, if dwNtbOutMaxSize is lower than the calculated "min" value, but greater than zero, the logic sets txmax to dwNtbOutMaxSize. This is then use...

UBUNTU-CVE-2023-53660

In the Linux kernel, the following vulnerability has been resolved: bpf, cpumap: Handle skb as well when clean up ptrring The following warning was reported when running xdpredirectcpu with both skb-mode and stress-mode enabled: ------------ cut here ------------ Incorrect XDP memory type...

UBUNTU-CVE-2023-53641

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: hifusb: fix memory leak of remainskbs hifdev-remainskb is allocated and used exclusively in ath9khifusbrxstream. It is implied that an allocated remainskb is processed and subsequently freed in error paths only durin...

CVE-2023-53685 tun: Fix memory leak for detached NAPI queue.

In the Linux kernel, the following vulnerability has been resolved: tun: Fix memory leak for detached NAPI queue. syzkaller reported 0 memory leaks of sk and skb related to the TUN device with no repro, but we can reproduce it easily with: struct ifreq ifr = int fdtun, fdtmp; char buf4 = ; fdtun ...

EUVD-2025-32720

In the Linux kernel, the following vulnerability has been resolved: tun: Fix memory leak for detached NAPI queue. syzkaller reported 0 memory leaks of sk and skb related to the TUN device with no repro, but we can reproduce it easily with: struct ifreq ifr = int fdtun, fdtmp; char buf4 = ; fdtun ...

CVE-2023-53685 tun: Fix memory leak for detached NAPI queue.

In the Linux kernel, the following vulnerability has been resolved: tun: Fix memory leak for detached NAPI queue. syzkaller reported 0 memory leaks of sk and skb related to the TUN device with no repro, but we can reproduce it easily with: struct ifreq ifr = int fdtun, fdtmp; char buf4 = ; fdtun ...

CVE-2023-53679 wifi: mt7601u: fix an integer underflow

In the Linux kernel, the following vulnerability has been resolved: wifi: mt7601u: fix an integer underflow Fix an integer underflow that leads to a null pointer dereference in 'mt7601urxskbfromseg'. The variable 'dmalen' in the URB packet could be manipulated, which could trigger an integer...

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...

CVE-2023-53669 tcp: fix skb_copy_ubufs() vs BIG TCP

In the Linux kernel, the following vulnerability has been resolved: tcp: fix skbcopyubufs vs BIG TCP David Ahern reported crashes in skbcopyubufs caused by TCP tx zerocopy using hugepages, and skb length bigger than 68 KB. skbcopyubufs assumed it could copy all payload using up to MAXSKBFRAGS...

CVE-2023-53669 tcp: fix skb_copy_ubufs() vs BIG TCP

In the Linux kernel, the following vulnerability has been resolved: tcp: fix skbcopyubufs vs BIG TCP David Ahern reported crashes in skbcopyubufs caused by TCP tx zerocopy using hugepages, and skb length bigger than 68 KB. skbcopyubufs assumed it could copy all payload using up to MAXSKBFRAGS...

CVE-2023-53669

The CVE-2023-53669 entry concerns the Linux kernel where skb_copy_ubufs() crashes when BIG TCP allows large skbs (up to ~512 KB) and zerocopy is used with hugepages. The root cause is skb_copy_ubufs() assuming payload could be copied using up to MAX_SKB_FRAGS order-0 pages; this breaks when BIG T...

CVE-2023-53669

In the Linux kernel, the following vulnerability has been resolved: tcp: fix skbcopyubufs vs BIG TCP David Ahern reported crashes in skbcopyubufs caused by TCP tx zerocopy using hugepages, and skb length bigger than 68 KB. skbcopyubufs assumed it could copy all payload using up to MAXSKBFRAGS...

EUVD-2025-32749

In the Linux kernel, the following vulnerability has been resolved: net: cdcncm: Deal with too low values of dwNtbOutMaxSize Currently in cdcncmchecktxmax, if dwNtbOutMaxSize is lower than the calculated "min" value, but greater than zero, the logic sets txmax to dwNtbOutMaxSize. This is then use...

CVE-2023-53667 net: cdc_ncm: Deal with too low values of dwNtbOutMaxSize

In the Linux kernel, the following vulnerability has been resolved: net: cdcncm: Deal with too low values of dwNtbOutMaxSize Currently in cdcncmchecktxmax, if dwNtbOutMaxSize is lower than the calculated "min" value, but greater than zero, the logic sets txmax to dwNtbOutMaxSize. This is then use...

CVE-2023-53660 bpf, cpumap: Handle skb as well when clean up ptr_ring

In the Linux kernel, the following vulnerability has been resolved: bpf, cpumap: Handle skb as well when clean up ptrring The following warning was reported when running xdpredirectcpu with both skb-mode and stress-mode enabled: ------------ cut here ------------ Incorrect XDP memory type...

CVE-2023-53641

CVE-2023-53641 – Linux kernel (wifi: ath9k: hif_usb): The issue is a memory leak in remain_skb within ath9k_hif_usb_rx_stream(). remain_skb is allocated and only freed in the next rx_stream() call; if URBs are deallocated between calls (e.g., device deinit or suspend), the allocated skb can leak....

EUVD-2025-32794

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: hifusb: fix memory leak of remainskbs hifdev-remainskb is allocated and used exclusively in ath9khifusbrxstream. It is implied that an allocated remainskb is processed and subsequently freed in error paths only durin...