CVE-2026-80978

CVE-2026-80978 affects the Linux kernel networking subsystem, specifically the IP tunnel devices. When a local attacker stacks user-created IP tunnel devices, the derived needed_headroom can exceed the 16-bit skb header offset range, causing those offsets to wrap during skb head expansion. The fi...

CVE-2026-80978

In the Linux kernel, the following vulnerability has been resolved: net: cap advertised IP tunnel headroom IP tunnel devices derive their advertised neededheadroom from lower output devices. A stack of user-created devices can make the derived value larger than the 16-bit skb header offsets can...

EUVD-2026-76301

In the Linux kernel, the following vulnerability has been resolved: net: cap advertised IP tunnel headroom IP tunnel devices derive their advertised neededheadroom from lower output devices. A stack of user-created devices can make the derived value larger than the 16-bit skb header offsets can...

CVE-2026-80978 net: cap advertised IP tunnel headroom

In the Linux kernel, the following vulnerability has been resolved: net: cap advertised IP tunnel headroom IP tunnel devices derive their advertised neededheadroom from lower output devices. A stack of user-created devices can make the derived value larger than the 16-bit skb header offsets can...

CVE-2026-80978 net: cap advertised IP tunnel headroom

In the Linux kernel, the following vulnerability has been resolved: net: cap advertised IP tunnel headroom IP tunnel devices derive their advertised neededheadroom from lower output devices. A stack of user-created devices can make the derived value larger than the 16-bit skb header offsets can...

CVE-2026-80977 net: skbuff: don't touch shared zerocopy state in skb_tx_error()

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: don't touch shared zerocopy state in skbtxerror skbtxerror completes the zerocopy uarg and clears SKBFLALLZEROCOPY, and skbzcopydowngrademanaged clears SKBFLMANAGEDFRAGREFS. Both live in skbshinfo, which every clone...

EUVD-2026-76300

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: don't touch shared zerocopy state in skbtxerror skbtxerror completes the zerocopy uarg and clears SKBFLALLZEROCOPY, and skbzcopydowngrademanaged clears SKBFLMANAGEDFRAGREFS. Both live in skbshinfo, which every clone...

CVE-2026-80941

CVE-2026-80941 affects the Linux kernel wifi: rtw88 driver. The root cause is in rtw_txq_push_skb() : when the skb passed to rtw_hci_tx_write() fails, the error path does not free the skb before returning. This leads to a potential memory leak in rtw_txq_push() , where a dequeued skb is passed to...

EUVD-2026-76264

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: Fix potential memory leak in rtwtxqpushskb The skb passed to the rtwhcitxwrite is expected to be freed when the function fails, but the error path in rtwtxqpushskb does not free the skb before returning. This can lea...

CVE-2026-80941 wifi: rtw88: Fix potential memory leak in rtw_txq_push_skb()

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: Fix potential memory leak in rtwtxqpushskb The skb passed to the rtwhcitxwrite is expected to be freed when the function fails, but the error path in rtwtxqpushskb does not free the skb before returning. This can lea...

CVE-2026-80941 wifi: rtw88: Fix potential memory leak in rtw_txq_push_skb()

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: Fix potential memory leak in rtwtxqpushskb The skb passed to the rtwhcitxwrite is expected to be freed when the function fails, but the error path in rtwtxqpushskb does not free the skb before returning. This can lea...

CVE-2026-80941

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: Fix potential memory leak in rtwtxqpushskb The skb passed to the rtwhcitxwrite is expected to be freed when the function fails, but the error path in rtwtxqpushskb does not free the skb before returning. This can lea...

PT-2026-90071

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw88: Fix potential memory leak in rtw txq push skb The skb passed to the rtw hci tx write is expected to be freed when the function fails, but the error path in rtw txq push skb does not free the skb before returning. Thi...

PT-2026-90107

In the Linux kernel, the following vulnerability has been resolved: net: skbuff: don't touch shared zerocopy state in skb tx error skb tx error completes the zerocopy uarg and clears SKBFL ALL ZEROCOPY, and skb zcopy downgrade managed clears SKBFL MANAGED FRAG REFS. Both live in skb shinfo, which...

PT-2026-90130

In the Linux kernel, the following vulnerability has been resolved: net: tun: bound receive headroom tun get user uses tun-align both as skb headroom and when choosing how much packet data to keep linear. OVS can propagate an oversized headroom request from another port to TUN or TAP. When align ...

PT-2026-90279

In the Linux kernel, the following vulnerability has been resolved: ip6 tunnel: use skb cow head in ip6 tnl xmit ip6 tnl xmit may need to expand headroom before it can push the outer IPv6 and optional encap headers. It currently does that with skb realloc headroom, copies skb-sk ownership, consum...

PT-2026-90118

In the Linux kernel, the following vulnerability has been resolved: NTB: ntb transport: Fail TX enqueue when the QP link is down Commit f195a1a6fe41 "ntb: Drop packets when qp link is down" meant to make ntb transport tx enqueue drop packets submitted while the QP link is down, but it only return...

PT-2026-90108

In the Linux kernel, the following vulnerability has been resolved: net: cap advertised IP tunnel headroom IP tunnel devices derive their advertised needed headroom from lower output devices. A stack of user-created devices can make the derived value larger than the 16-bit skb header offsets can...

PT-2026-90117

In the Linux kernel, the following vulnerability has been resolved: NTB: ntb transport: Reject oversized TX buffers ntb process tx handles an oversized buffer by calling tx handler with a NULL data pointer and returning success. ntb netdev therefore neither frees the skb in its completion callbac...

PT-2026-90281

In the Linux kernel, the following vulnerability has been resolved: ipip: fix skb leak in collect md mode when metadata dst allocation fails In collect md mode ipip tunnel rcv returns 0 without freeing the skb when ip tun rx dst fails to allocate the metadata dst. ipip rcv and mplsip rcv are...