Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: In the tunnels section, there’s no need to assume that the macheader is set when using skbtunnelcheckpmtu. The recently added debug in commit f9aefd6b2aa3 “net: warn if mac header was not set” identified a bug in...

UBUNTU-CVE-2026-72019

In the Linux kernel, the following vulnerability has been resolved: macsec: don't read an unset MAC header in macsecencrypt macsecencrypt reads the Ethernet header via ethhdrskb skb-head + skb-macheader to memmove the 12 source/destination MAC bytes forward and make room for the SecTAG. On the...

CVE-2026-68296 net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM

In the Linux kernel, the following vulnerability has been resolved: net: gre: fix lltx regression for GRE tunnels with SEQ/CSUM Before commit 00d066a4d4ed "netdevfeatures: convert NETIFFLLTX to dev-lltx", NETIFFLLTX was set unconditionally in both gretunnelinit and ip6gretnlinitfeatures alongside...

CVE-2022-50764: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ipv6/sit: use DEVSTATSINC to avoid data-races syzbot/KCSAN reported that multiple cpus are updating dev-stats.txerror concurrently. This is because sit tunnels are NETIFFLLTX, meaning their ndostartxmit is not protected by a...

CVE-2022-50564 s390/netiucv: Fix return type of netiucv_tx()

In the Linux kernel, the following vulnerability has been resolved: s390/netiucv: Fix return type of netiucvtx With clang's kernel control flow integrity kCFI, CONFIGCFICLANG, indirect call targets are validated against the expected function pointer prototype to make sure the call target is valid...

CVE-2023-53601: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bonding: do not assume skb macheader is set Drivers must not assume in their ndostartxmit that skbs have their macheader set. skb-data is all what is needed. bonding seems to be one of the last offender as caught by syzbot:...

EUVD-2025-13210

Malicious code in bioql PyPI...

CVE-2023-53053

In the Linux kernel, the following vulnerability has been resolved: erspan: do not use skbmacheader in ndostartxmit Drivers should not assume skbmacheaderskb == skb-data in their ndostartxmit. Use skbnetworkoffset and skbtransportoffset which better describe what is needed in erspanfbxmit and...

CVE-2023-53053

In the Linux kernel, the following vulnerability has been resolved: erspan: do not use skbmacheader in ndostartxmit Drivers should not assume skbmacheaderskb == skb-data in their ndostartxmit. Use skbnetworkoffset and skbtransportoffset which better describe what is needed in erspanfbxmit and...

CVE-2023-53053

CVE-2023-53053 affects the Linux kernel: erspan handling relied on skb_mac_header() in ndo_start_xmit(), with drivers incorrectly assuming skb_mac_header(skb) == skb->data. The issue is fixed by using skb_network_offset() and skb_transport_offset() in erspan_fb_xmit() and ip6erspan_tunnel_xmit...

CVE-2023-53053 erspan: do not use skb_mac_header() in ndo_start_xmit()

In the Linux kernel, the following vulnerability has been resolved: erspan: do not use skbmacheader in ndostartxmit Drivers should not assume skbmacheaderskb == skb-data in their ndostartxmit. Use skbnetworkoffset and skbtransportoffset which better describe what is needed in erspanfbxmit and...

CVE-2023-53053 erspan: do not use skb_mac_header() in ndo_start_xmit()

In the Linux kernel, the following vulnerability has been resolved: erspan: do not use skbmacheader in ndostartxmit Drivers should not assume skbmacheaderskb == skb-data in their ndostartxmit. Use skbnetworkoffset and skbtransportoffset which better describe what is needed in erspanfbxmit and...

CVE-2023-53053: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: erspan: do not use skbmacheader in ndostartxmit Drivers should not assume skbmacheaderskb == skb-data in their ndostartxmit. Use skbnetworkoffset and skbtransportoffset which better describe what is needed in erspanfbxmit and...

CVE-2022-49663

In the Linux kernel, the following vulnerability has been resolved: tunnels: do not assume mac header is set in skbtunnelcheckpmtu Recently added debug in commit f9aefd6b2aa3 "net: warn if mac header was not set" caught a bug in skbtunnelcheckpmtu, as shown in this syzbot report 1. In ndostartxmi...

UBUNTU-CVE-2022-49663

In the Linux kernel, the following vulnerability has been resolved: tunnels: do not assume mac header is set in skbtunnelcheckpmtu Recently added debug in commit f9aefd6b2aa3 "net: warn if mac header was not set" caught a bug in skbtunnelcheckpmtu, as shown in this syzbot report 1. In ndostartxmi...

CVE-2022-49663

CVE-2022-49663 affects the Linux kernel in the tunneling path used by Genefe/IPv4 tunnels. The root cause is an assumption that skb->mac_header is set in skb_tunnel_check_pmtu(); debug added in a kernel commit triggered a warning in ndo_start_xmit() paths, since skb->data should point to th...

CVE-2022-49663: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: tunnels: do not assume mac header is set in skbtunnelcheckpmtu Recently added debug in commit f9aefd6b2aa3 "net: warn if mac header was not set" caught a bug in skbtunnelcheckpmtu, as shown in this syzbot report 1. In ndostartxmi...