AZL-70355 CVE-2022-50073 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null Fixes a NULL pointer derefence bug triggered from tap driver. When tapgetuser calls virtionethdrtoskb the skb-dev is null in tap.c skb-dev is set aft...

UBUNTU-CVE-2022-50073

In the Linux kernel, the following vulnerability has been resolved: net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null Fixes a NULL pointer derefence bug triggered from tap driver. When tapgetuser calls virtionethdrtoskb the skb-dev is null in tap.c skb-dev is set aft...

CVE-2022-50073

CVE-2022-50073 affects the Linux kernel TAP path. Root cause: in dev_parse_header_protocol the code dereferences skb->dev which can be NULL when the tap driver calls virtio_net_hdr_to_skb, causing a NULL pointer dereference. The issue is triggered in tap_get_user/tap_sendmsg paths and can cras...

CVE-2022-50073 net: tap: NULL pointer derefence in dev_parse_header_protocol when skb->dev is null

In the Linux kernel, the following vulnerability has been resolved: net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null Fixes a NULL pointer derefence bug triggered from tap driver. When tapgetuser calls virtionethdrtoskb the skb-dev is null in tap.c skb-dev is set aft...

CVE-2022-50073 net: tap: NULL pointer derefence in dev_parse_header_protocol when skb->dev is null

In the Linux kernel, the following vulnerability has been resolved: net: tap: NULL pointer derefence in devparseheaderprotocol when skb-dev is null Fixes a NULL pointer derefence bug triggered from tap driver. When tapgetuser calls virtionethdrtoskb the skb-dev is null in tap.c skb-dev is set aft...

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 the Linux kernel, which stems from a tap driver call to devparseheaderprotocol when skb-dev is null resulting in a null pointer dereference...

Linux Distros Unpatched Vulnerability : CVE-2023-3812

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An out-of-bounds memory access flaw was found in the Linux kernel's TUN/TAP device driver functionality in how a user generates a malicious too big networking...

Fuzzing µC/OS protocol stacks, Part 3: TCP/IP server fuzzing, implementing a TAP driver

This is the final post in the three-part series that details techniques I used to fuzz two µC/OS protocol stacks: µC/TCP-IP and µC/HTTP-server. The first post highlighted code modifications necessary for developing a fuzzing harness tailored for the µC/HTTP-server. The second discussed a techniqu...

UBUNTU-CVE-2024-41090

In the Linux kernel, the following vulnerability has been resolved: tap: add missing verification for short frame The cited commit missed to check against the validity of the frame length in the tapgetuserxdp path, which could cause a corrupted skb to be sent downstack. Even before the skb is...

SUSE CVE-2024-41090

In the Linux kernel, the following vulnerability has been resolved: tap: add missing verification for short frame The cited commit missed to check against the validity of the frame length in the tapgetuserxdp path, which could cause a corrupted skb to be sent downstack. Even before the skb is...

kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags

An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious too big networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system...

kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags

An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious too big networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system...

AlmaLinux 8 : kpatch-patch (ALSA-2023:7554)

The remote AlmaLinux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2023:7554 advisory. - Incorrect verifier pruning in BPF in Linux Kernel =5.4 leads to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in...

kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags

An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious too big networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system...

kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags

An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious too big networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system...

kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags

An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious too big networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system...

kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags

An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious too big networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system...

kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags

An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious too big networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate their privileges on the system...

kernel: tun: avoid double free in tun_free_netdev

A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the registernetdevice function fails NETDEVREGISTER notifier. This flaw allows a local user to crash or potentially escalate their privileges on the system...

USN-6445-2: Linux kernel (Intel IoTG) vulnerabilities

It was discovered that the IPv6 implementation in the Linux kernel contained a high rate of hash collisions in connection lookup table. A remote attacker could use this to cause a denial of service excessive CPU consumption. CVE-2023-1206 Daniel Trujillo, Johannes Wikner, and Kaveh Razavi...