{"id":"CVE-2025-68759","state":"PUBLISHED","title":"wifi: rtl818x: Fix potential memory leaks in rtl8180_init_rx_ring()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtl818x: Fix potential memory leaks in rtl8180_init_rx_ring()\n\nIn rtl8180_init_rx_ring(), memory is allocated for skb packets and DMA\nallocations in a loop. When an allocation fails, the previously\nsuccessful allocations are not freed on exit.\n\nFix that by jumping to err_free_rings label on error, which calls\nrtl8180_free_rx_ring() to free the allocations. Remove the free of\nrx_ring in rtl8180_init_rx_ring() error path, and set the freed\npriv->rx_buf entry to null, to avoid double free.","publishedAt":"2026-01-05T09:32:32.174Z","updatedAt":"2026-05-11T21:52:48.124Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"3677c01891fb0239361e444afee8398868e34bdf","versionType":"git"},{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"89caaeee8dd95fae8bb4f4964e6fe3ca688500c4","versionType":"git"},{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"a4fb7cca9837378878e6c94d9e7af019c8fdfcdb","versionType":"git"},{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"bf8513dfa31ea015c9cf415796dca2113d293840","versionType":"git"},{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"ee7db11742b30641f21306105ad27a275e3c61d7","versionType":"git"},{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"a813a74570212cb5f3a7d3b05c0cb0cd00bace1d","versionType":"git"},{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"c9d1c4152e6d32fa74034464854bee262a60bc43","versionType":"git"},{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"9b5b9c042b30befc5b37e4539ace95af70843473","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.25","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.25","versionType":"semver"},{"version":"5.10.248","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.198","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.160","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.120","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.63","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.17.13","status":"unaffected","lessThanOrEqual":"6.17.*","versionType":"semver"},{"version":"6.18.2","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c"]}],"references":["https://git.kernel.org/stable/c/3677c01891fb0239361e444afee8398868e34bdf","https://git.kernel.org/stable/c/89caaeee8dd95fae8bb4f4964e6fe3ca688500c4","https://git.kernel.org/stable/c/a4fb7cca9837378878e6c94d9e7af019c8fdfcdb","https://git.kernel.org/stable/c/bf8513dfa31ea015c9cf415796dca2113d293840","https://git.kernel.org/stable/c/ee7db11742b30641f21306105ad27a275e3c61d7","https://git.kernel.org/stable/c/a813a74570212cb5f3a7d3b05c0cb0cd00bace1d","https://git.kernel.org/stable/c/c9d1c4152e6d32fa74034464854bee262a60bc43","https://git.kernel.org/stable/c/9b5b9c042b30befc5b37e4539ace95af70843473"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:56.034Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/68xxx/CVE-2025-68759.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-68759","state":"PUBLISHED","datePublished":"2026-01-05T09:32:32.174Z","dateUpdated":"2026-05-11T21:52:48.124Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-24T10:30:51.033Z"},"containers":{"cna":{"title":"wifi: rtl818x: Fix potential memory leaks in rtl8180_init_rx_ring()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtl818x: Fix potential memory leaks in rtl8180_init_rx_ring()\n\nIn rtl8180_init_rx_ring(), memory is allocated for skb packets and DMA\nallocations in a loop. When an allocation fails, the previously\nsuccessful allocations are not freed on exit.\n\nFix that by jumping to err_free_rings label on error, which calls\nrtl8180_free_rx_ring() to free the allocations. Remove the free of\nrx_ring in rtl8180_init_rx_ring() error path, and set the freed\npriv->rx_buf entry to null, to avoid double free."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"3677c01891fb0239361e444afee8398868e34bdf","versionType":"git"},{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"89caaeee8dd95fae8bb4f4964e6fe3ca688500c4","versionType":"git"},{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"a4fb7cca9837378878e6c94d9e7af019c8fdfcdb","versionType":"git"},{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"bf8513dfa31ea015c9cf415796dca2113d293840","versionType":"git"},{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"ee7db11742b30641f21306105ad27a275e3c61d7","versionType":"git"},{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"a813a74570212cb5f3a7d3b05c0cb0cd00bace1d","versionType":"git"},{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"c9d1c4152e6d32fa74034464854bee262a60bc43","versionType":"git"},{"version":"f653211197f3841f383fa9757ef8ce182c6cf627","status":"affected","lessThan":"9b5b9c042b30befc5b37e4539ace95af70843473","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.25","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.25","versionType":"semver"},{"version":"5.10.248","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.198","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.160","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.120","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.63","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.17.13","status":"unaffected","lessThanOrEqual":"6.17.*","versionType":"semver"},{"version":"6.18.2","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtl818x/rtl8180/dev.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/3677c01891fb0239361e444afee8398868e34bdf"},{"url":"https://git.kernel.org/stable/c/89caaeee8dd95fae8bb4f4964e6fe3ca688500c4"},{"url":"https://git.kernel.org/stable/c/a4fb7cca9837378878e6c94d9e7af019c8fdfcdb"},{"url":"https://git.kernel.org/stable/c/bf8513dfa31ea015c9cf415796dca2113d293840"},{"url":"https://git.kernel.org/stable/c/ee7db11742b30641f21306105ad27a275e3c61d7"},{"url":"https://git.kernel.org/stable/c/a813a74570212cb5f3a7d3b05c0cb0cd00bace1d"},{"url":"https://git.kernel.org/stable/c/c9d1c4152e6d32fa74034464854bee262a60bc43"},{"url":"https://git.kernel.org/stable/c/9b5b9c042b30befc5b37e4539ace95af70843473"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:52:48.124Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"5.10.248"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"5.15.198"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"6.1.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"6.6.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"6.12.63"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"6.17.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"6.18.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.25","versionEndExcluding":"6.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}