UBUNTU-CVE-2025-39847

In the Linux kernel, the following vulnerability has been resolved: ppp: fix memory leak in padcompressskb If allocskb fails in padcompressskb, it returns NULL without releasing the old skb. The caller does: skb = padcompressskbppp, skb; if !skb goto drop; drop: kfreeskbskb; When padcompressskb...

CVE-2025-39848

In the Linux kernel, the following vulnerability has been resolved: ax25: properly unshare skbs in ax25kissrcv Bernard Pidoux reported a regression apparently caused by commit c353e8983e0d "net: introduce per netns packet chains". skb-dev becomes NULL and we crash in netifreceiveskbcore. Before...

CVE-2025-39839 batman-adv: fix OOB read/write in network-coding decode

In the Linux kernel, the following vulnerability has been resolved: batman-adv: fix OOB read/write in network-coding decode batadvncskbdecodepacket trusts codedlen and checks only against skb-len. XOR starts at sizeofstruct batadvunicastpacket, reducing payload headroom, and the source skb length...

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 that stems from the failure to free an old skb when memory allocation fails in the padcompressskb function, which could lead...

SUSE CVE-2023-53398

In the Linux kernel, the following vulnerability has been resolved: mlx5: fix possible ptp queue fifo use-after-free Fifo indexes are not checked during pop operations and it leads to potential use-after-free when poping from empty queue. Such case was possible during re-sync action. WARNONONCE...

CVE-2023-53384

In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: avoid possible NULL skb pointer dereference In 'mwifiexhandleuaprxforward', always check the value returned by 'skbcopy' to avoid potential NULL pointer dereference in 'mwifiexuapqueuebridgedpkt', and drop original...

DEBIAN-CVE-2023-53439

In the Linux kernel, the following vulnerability has been resolved: net: skbpartialcsumset fix against transport header magic value skb-transportheader uses the special 0xFFFF value to mark if the transport header was set or not. We must prevent callers to accidentaly set skb-transportheader to...

CVE-2023-53439 net: skb_partial_csum_set() fix against transport header magic value

In the Linux kernel, the following vulnerability has been resolved: net: skbpartialcsumset fix against transport header magic value skb-transportheader uses the special 0xFFFF value to mark if the transport header was set or not. We must prevent callers to accidentaly set skb-transportheader to...

CVE-2023-53433 net: add vlan_get_protocol_and_depth() helper

In the Linux kernel, the following vulnerability has been resolved: net: add vlangetprotocolanddepth helper Before blamed commit, pskbmaypull was used instead of skbheaderpointer in vlangetprotocol and friends. Few callers depended on skb-head being populated with MAC header, syzbot caught one of...

DEBIAN-CVE-2023-53384

In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: avoid possible NULL skb pointer dereference In 'mwifiexhandleuaprxforward', always check the value returned by 'skbcopy' to avoid potential NULL pointer dereference in 'mwifiexuapqueuebridgedpkt', and drop original...

UBUNTU-CVE-2023-53398

In the Linux kernel, the following vulnerability has been resolved: mlx5: fix possible ptp queue fifo use-after-free Fifo indexes are not checked during pop operations and it leads to potential use-after-free when poping from empty queue. Such case was possible during re-sync action. WARNONONCE...

CVE-2023-53398 mlx5: fix possible ptp queue fifo use-after-free

In the Linux kernel, the following vulnerability has been resolved: mlx5: fix possible ptp queue fifo use-after-free Fifo indexes are not checked during pop operations and it leads to potential use-after-free when poping from empty queue. Such case was possible during re-sync action. WARNONONCE...

CVE-2023-53384 wifi: mwifiex: avoid possible NULL skb pointer dereference

In the Linux kernel, the following vulnerability has been resolved: wifi: mwifiex: avoid possible NULL skb pointer dereference In 'mwifiexhandleuaprxforward', always check the value returned by 'skbcopy' to avoid potential NULL pointer dereference in 'mwifiexuapqueuebridgedpkt', and drop original...

PT-2025-38458

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to the handling of transport header magic values within the skb partial csum set function. Specifically, the code does not prevent callers from...

SUSE CVE-2023-53365

In the Linux kernel, the following vulnerability has been resolved: ip6mr: Fix skbunderpanic in ip6mrcachereport skbuff: skbunderpanic: text:ffffffff88771f69 len:56 put:-4 head:ffff88805f86a800 data:ffff887f5f86a850 tail:0x88 end:0x2c0 dev:pim6reg ------------ cut here ------------ kernel BUG at...

CVE-2023-53365

In the Linux kernel, the following vulnerability has been resolved: ip6mr: Fix skbunderpanic in ip6mrcachereport skbuff: skbunderpanic: text:ffffffff88771f69 len:56 put:-4 head:ffff88805f86a800 data:ffff887f5f86a850 tail:0x88 end:0x2c0 dev:pim6reg ------------ cut here ------------ kernel BUG at...

CVE-2023-53365

In the Linux kernel, the following vulnerability has been resolved: ip6mr: Fix skbunderpanic in ip6mrcachereport skbuff: skbunderpanic: text:ffffffff88771f69 len:56 put:-4 head:ffff88805f86a800 data:ffff887f5f86a850 tail:0x88 end:0x2c0 dev:pim6reg ------------ cut here ------------ kernel BUG at...

UBUNTU-CVE-2023-53354

In the Linux kernel, the following vulnerability has been resolved: skbuff: skbsegment, Call zero copy functions before using skbuff frags Commit bf5c25d60861 "skbuff: in skbsegment, call zerocopy functions once per nskb" added the call to zero copy functions in skbsegment. The change introduced ...

CVE-2023-53354

The CVE-2023-53354 issue affects the Linux kernel, specifically skb_segment() in net/core/skbuff.c. A bug caused by calling skb_orphan_frags() before zero-copy handling can update nrfrags and leave frag pointing to stale values, leading to a NULL pointer dereference and kernel panic in the GSO pa...

CVE-2022-50365 skbuff: Account for tail adjustment during pull operations

In the Linux kernel, the following vulnerability has been resolved: skbuff: Account for tail adjustment during pull operations Extending the tail can have some unexpected side effects if a program uses a helper like BPFFUNCskbpulldata to read partial content beyond the head skb headlen when all t...