{"id":"CVE-2025-37955","state":"PUBLISHED","title":"virtio-net: free xsk_buffs on error in virtnet_xsk_pool_enable()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio-net: free xsk_buffs on error in virtnet_xsk_pool_enable()\n\nThe selftests added to our CI by Bui Quang Minh recently reveals\nthat there is a mem leak on the error path of virtnet_xsk_pool_enable():\n\nunreferenced object 0xffff88800a68a000 (size 2048):\n  comm \"xdp_helper\", pid 318, jiffies 4294692778\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace (crc 0):\n    __kvmalloc_node_noprof+0x402/0x570\n    virtnet_xsk_pool_enable+0x293/0x6a0 (drivers/net/virtio_net.c:5882)\n    xp_assign_dev+0x369/0x670 (net/xdp/xsk_buff_pool.c:226)\n    xsk_bind+0x6a5/0x1ae0\n    __sys_bind+0x15e/0x230\n    __x64_sys_bind+0x72/0xb0\n    do_syscall_64+0xc1/0x1d0\n    entry_SYSCALL_64_after_hwframe+0x77/0x7f","publishedAt":"2025-05-20T16:01:49.209Z","updatedAt":"2026-05-11T21:18:20.158Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e9f3962441c0a4d6f16c656e6c8aa02a3ccdd568","status":"affected","lessThan":"94a6f6c204abb2b2dcd2ce287536cc924469cfb5","versionType":"git"},{"version":"e9f3962441c0a4d6f16c656e6c8aa02a3ccdd568","status":"affected","lessThan":"ba6917810bb4a5a32661fa941717399052b3f0d9","versionType":"git"},{"version":"e9f3962441c0a4d6f16c656e6c8aa02a3ccdd568","status":"affected","lessThan":"4397684a292a71fbc1e815c3e283f7490ddce5ae","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/virtio_net.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.29","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.14.7","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/virtio_net.c"]}],"references":["https://git.kernel.org/stable/c/94a6f6c204abb2b2dcd2ce287536cc924469cfb5","https://git.kernel.org/stable/c/ba6917810bb4a5a32661fa941717399052b3f0d9","https://git.kernel.org/stable/c/4397684a292a71fbc1e815c3e283f7490ddce5ae"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:03.054Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/37xxx/CVE-2025-37955.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-37955","state":"PUBLISHED","datePublished":"2025-05-20T16:01:49.209Z","dateUpdated":"2026-05-11T21:18:20.158Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:23.973Z"},"containers":{"cna":{"title":"virtio-net: free xsk_buffs on error in virtnet_xsk_pool_enable()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nvirtio-net: free xsk_buffs on error in virtnet_xsk_pool_enable()\n\nThe selftests added to our CI by Bui Quang Minh recently reveals\nthat there is a mem leak on the error path of virtnet_xsk_pool_enable():\n\nunreferenced object 0xffff88800a68a000 (size 2048):\n  comm \"xdp_helper\", pid 318, jiffies 4294692778\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace (crc 0):\n    __kvmalloc_node_noprof+0x402/0x570\n    virtnet_xsk_pool_enable+0x293/0x6a0 (drivers/net/virtio_net.c:5882)\n    xp_assign_dev+0x369/0x670 (net/xdp/xsk_buff_pool.c:226)\n    xsk_bind+0x6a5/0x1ae0\n    __sys_bind+0x15e/0x230\n    __x64_sys_bind+0x72/0xb0\n    do_syscall_64+0xc1/0x1d0\n    entry_SYSCALL_64_after_hwframe+0x77/0x7f"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e9f3962441c0a4d6f16c656e6c8aa02a3ccdd568","status":"affected","lessThan":"94a6f6c204abb2b2dcd2ce287536cc924469cfb5","versionType":"git"},{"version":"e9f3962441c0a4d6f16c656e6c8aa02a3ccdd568","status":"affected","lessThan":"ba6917810bb4a5a32661fa941717399052b3f0d9","versionType":"git"},{"version":"e9f3962441c0a4d6f16c656e6c8aa02a3ccdd568","status":"affected","lessThan":"4397684a292a71fbc1e815c3e283f7490ddce5ae","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/virtio_net.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.11","versionType":"semver"},{"version":"6.12.29","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.14.7","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/virtio_net.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/94a6f6c204abb2b2dcd2ce287536cc924469cfb5"},{"url":"https://git.kernel.org/stable/c/ba6917810bb4a5a32661fa941717399052b3f0d9"},{"url":"https://git.kernel.org/stable/c/4397684a292a71fbc1e815c3e283f7490ddce5ae"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:18:20.158Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.12.29"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.14.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.15"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}