CVE-2022-50732

CVE-2022-50732 affects the Linux kernel, specifically the staging driver rtl8192u. The vulnerability is a use-after-free in the ieee80211_rx flow: the skb pointer must not be dereferenced after the call to ieee80211_monitor_rx(), but it may be if the sequence is not ordered correctly. The descrip...

UBUNTU-CVE-2025-68363

In the Linux kernel, the following vulnerability has been resolved: bpf: Check skb-transportheader is set in bpfskbcheckmtu The bpfskbcheckmtu helper needs to use skb-transportheader when the BPFMTUCHKSEGS flag is used: bpfskbcheckmtuskb, ifindex, &mtulen, 0, BPFMTUCHKSEGS The transportheader is...

UBUNTU-CVE-2022-50706

In the Linux kernel, the following vulnerability has been resolved: net/ieee802154: don't warn zero-sized rawsendmsg syzbot is hitting skbassertlen warning at devqueuexmit 1, for PFIEEE802154 socket's zero-sized rawsendmsg request is hitting devqueuexmit with skb-len == 0. Since PFIEEE802154...

CVE-2023-54039 can: j1939: j1939_tp_tx_dat_new(): fix out-of-bounds memory access

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939tptxdatnew: fix out-of-bounds memory access In the j1939tptxdatnew function, an out-of-bounds memory access could occur during the memcpy operation if the size of skb-cb is larger than the size of struct...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from not checking if skb-transportheader is set, which could lead to a null pointer dereference...

Linux Distros Unpatched Vulnerability : CVE-2025-68363

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Check skb-transportheader is set in bpfskbcheckmtu The bpfskbcheckmtu helper needs to use skb-transportheader when the BPFMTUCHKSEGS flag is used:...

kernel: net: tun: Update napi->skb after XDP process

A use-after-free flaw was found in tungetuser in drivers/net/tun.c in network TUNnel module in Linux kernel. This flaw could allow an attacker to crash the system at device disconnect. This vulnerability could even lead to a kernel information leak problem...

CVE-2025-40350 net/mlx5e: RX, Fix generating skb from non-linear xdp_buff for striding RQ

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: RX, Fix generating skb from non-linear xdpbuff for striding RQ XDP programs can change the layout of an xdpbuff through bpfxdpadjusttail and bpfxdpadjusthead. Therefore, the driver cannot assume the size of the linear...

PT-2025-51647

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue within the io uring/cmd net subsystem related to incorrect argument types used in the skb queue splice function. Specifically, when timestamp retrieval...

CVE-2023-53802

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: htchst: free skb in ath9khtcrxmsg if there is no callback function It is stated that ath9khtcrxmsg either frees the provided skb or passes its management to another callback function. However, the skb is not freed in...

EUVD-2023-60160

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skb refcnt race after locking changes There is a race where skb's from the skpsockbacklog can be referenced after userspace side has already skbconsumed the skbuff and its refcnt dropped to zer0 causing use afte...

CVE-2023-53836

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix skb refcnt race after locking changes There is a race where skb's from the skpsockbacklog can be referenced after userspace side has already skbconsumed the skbuff and its refcnt dropped to zer0 causing use afte...

UBUNTU-CVE-2023-53821

In the Linux kernel, the following vulnerability has been resolved: ip6vti: fix slab-use-after-free in decodesession6 When ipv6vti device is set to the qdisc of the sfb type, the cb field of the sent skb may be modified during enqueuing. Then, slab-use-after-free may occur when ipv6vti device sen...

EUVD-2022-55701

In the Linux kernel, the following vulnerability has been resolved: ppp: associate skb with a device at tx Syzkaller triggered flow dissector warning with the following: r0 = openat$ppp0xffffffffffffff9c, &0x7f0000000000, 0xc0802, 0x0 ioctl$PPPIOCNEWUNITr0, 0xc004743e, &0x7f00000000c0...

DEBIAN-CVE-2022-50655

In the Linux kernel, the following vulnerability has been resolved: ppp: associate skb with a device at tx Syzkaller triggered flow dissector warning with the following: r0 = openat$ppp0xffffffffffffff9c, &0x7f0000000000, 0xc0802, 0x0 ioctl$PPPIOCNEWUNITr0, 0xc004743e, &0x7f00000000c0...

UBUNTU-CVE-2023-53785

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7921: don't assume adequate headroom for SDIO headers mt7921usbsdiotxprepareskb calls mt7921usbsdiowritetxwi and mt7921skbaddusbsdiohdr, both of which blindly assume that adequate headroom will be available in the passed...

CVE-2023-53802 wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: htchst: free skb in ath9khtcrxmsg if there is no callback function It is stated that ath9khtcrxmsg either frees the provided skb or passes its management to another callback function. However, the skb is not freed in...

CVE-2023-53802

In the Linux kernel, the following vulnerability has been resolved: wifi: ath9k: htchst: free skb in ath9khtcrxmsg if there is no callback function It is stated that ath9khtcrxmsg either frees the provided skb or passes its management to another callback function. However, the skb is not freed in...

CVE-2022-50655

Summary. CVE-2022-50655 concerns the Linux kernel PPP transmit path where flow dissector could fail to locate the skb’s net namespace, risking misassociation of skb with the device. Multiple trusted sources (OSV, Debian OSV, UBUNTU OSV, NVD, EUVD) confirm the vulnerability was resolved in the Lin...

CVE-2022-50655 ppp: associate skb with a device at tx

In the Linux kernel, the following vulnerability has been resolved: ppp: associate skb with a device at tx Syzkaller triggered flow dissector warning with the following: r0 = openat$ppp0xffffffffffffff9c, &0x7f0000000000, 0xc0802, 0x0 ioctl$PPPIOCNEWUNITr0, 0xc004743e, &0x7f00000000c0...