Riskcovery

CVE-2025-37955

virtio-net: free xsk_buffs on error in virtnet_xsk_pool_enable()

State
Published
Severity
Not scored
Published
May 20, 2025
Updated
May 11, 2026
Reserved
Apr 16, 2025

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

virtio-net: free xsk_buffs on error in virtnet_xsk_pool_enable()

The selftests added to our CI by Bui Quang Minh recently reveals that there is a mem leak on the error path of virtnet_xsk_pool_enable():

unreferenced object 0xffff88800a68a000 (size 2048): comm "xdp_helper", pid 318, jiffies 4294692778 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace (crc 0): __kvmalloc_node_noprof+0x402/0x570 virtnet_xsk_pool_enable+0x293/0x6a0 (drivers/net/virtio_net.c:5882) xp_assign_dev+0x369/0x670 (net/xdp/xsk_buff_pool.c:226) xsk_bind+0x6a5/0x1ae0 __sys_bind+0x15e/0x230 __x64_sys_bind+0x72/0xb0 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • e9f3962441c0a4d6f16c656e6c8aa02a3ccdd568 to before 94a6f6c204abb2b2dcd2ce287536cc924469cfb5Affected
  • e9f3962441c0a4d6f16c656e6c8aa02a3ccdd568 to before ba6917810bb4a5a32661fa941717399052b3f0d9Affected
  • e9f3962441c0a4d6f16c656e6c8aa02a3ccdd568 to before 4397684a292a71fbc1e815c3e283f7490ddce5aeAffected
LinuxLinux
  • 6.11Affected
  • before 6.11Not affected
  • 6.12.29 through 6.12.*Not affected
  • 6.14.7 through 6.14.*Not affected
  • 6.15 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.