{"id":"CVE-2026-53112","state":"PUBLISHED","title":"wifi: rtlwifi: pci: fix possible use-after-free caused by unfinished irq_prepare_bcn_tasklet","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtlwifi: pci: fix possible use-after-free caused by unfinished irq_prepare_bcn_tasklet\n\nThe irq_prepare_bcn_tasklet is initialized in rtl_pci_init() and\nscheduled when RTL_IMR_BCNINT interrupt is triggered by hardware.\nBut it is never killed in rtl_pci_deinit(). When the rtlwifi card\nprobe fails or is being detached, the ieee80211_hw is deallocated.\nHowever, irq_prepare_bcn_tasklet may still be running or pending,\nleading to use-after-free when the freed ieee80211_hw is accessed\nin _rtl_pci_prepare_bcn_tasklet().\n\nSimilar to irq_tasklet, add tasklet_kill() in rtl_pci_deinit() to\nensure that irq_prepare_bcn_tasklet is properly terminated before\nthe ieee80211_hw is released.\n\nThe issue was identified through static analysis.","publishedAt":"2026-06-24T16:30:45.359Z","updatedAt":"2026-06-24T16:30:45.359Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"ae10d4a1ab6bcaa1336abb171908a9a365761d3e","versionType":"git"},{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"fac1079e0fdec6df6d7562c21941587236dc3def","versionType":"git"},{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"e40873820c9d245ce482faa7ad514ebdb3b8d23d","versionType":"git"},{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"008c456b76e9070979bc0e763897a5d3b0fdd4dc","versionType":"git"},{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"7731b67bd59d1284d150cbe40a47e95a10613234","versionType":"git"},{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"aa10a452e34810987fb9f4a047995b30003fb53f","versionType":"git"},{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"3c0e8a3179e6325a7dc6ce221aef0e03d854ab4b","versionType":"git"},{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"039cd522dc70151da13329a5e3ae19b1736f468a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtlwifi/pci.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.38","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.38","versionType":"semver"},{"version":"5.10.258","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.141","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.91","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.33","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","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/rtlwifi/pci.c"]}],"references":["https://git.kernel.org/stable/c/ae10d4a1ab6bcaa1336abb171908a9a365761d3e","https://git.kernel.org/stable/c/fac1079e0fdec6df6d7562c21941587236dc3def","https://git.kernel.org/stable/c/e40873820c9d245ce482faa7ad514ebdb3b8d23d","https://git.kernel.org/stable/c/008c456b76e9070979bc0e763897a5d3b0fdd4dc","https://git.kernel.org/stable/c/7731b67bd59d1284d150cbe40a47e95a10613234","https://git.kernel.org/stable/c/aa10a452e34810987fb9f4a047995b30003fb53f","https://git.kernel.org/stable/c/3c0e8a3179e6325a7dc6ce221aef0e03d854ab4b","https://git.kernel.org/stable/c/039cd522dc70151da13329a5e3ae19b1736f468a"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:16.098Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/53xxx/CVE-2026-53112.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53112","state":"PUBLISHED","datePublished":"2026-06-24T16:30:45.359Z","dateUpdated":"2026-06-24T16:30:45.359Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-06-09T07:44:35.385Z"},"containers":{"cna":{"title":"wifi: rtlwifi: pci: fix possible use-after-free caused by unfinished irq_prepare_bcn_tasklet","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtlwifi: pci: fix possible use-after-free caused by unfinished irq_prepare_bcn_tasklet\n\nThe irq_prepare_bcn_tasklet is initialized in rtl_pci_init() and\nscheduled when RTL_IMR_BCNINT interrupt is triggered by hardware.\nBut it is never killed in rtl_pci_deinit(). When the rtlwifi card\nprobe fails or is being detached, the ieee80211_hw is deallocated.\nHowever, irq_prepare_bcn_tasklet may still be running or pending,\nleading to use-after-free when the freed ieee80211_hw is accessed\nin _rtl_pci_prepare_bcn_tasklet().\n\nSimilar to irq_tasklet, add tasklet_kill() in rtl_pci_deinit() to\nensure that irq_prepare_bcn_tasklet is properly terminated before\nthe ieee80211_hw is released.\n\nThe issue was identified through static analysis."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"ae10d4a1ab6bcaa1336abb171908a9a365761d3e","versionType":"git"},{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"fac1079e0fdec6df6d7562c21941587236dc3def","versionType":"git"},{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"e40873820c9d245ce482faa7ad514ebdb3b8d23d","versionType":"git"},{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"008c456b76e9070979bc0e763897a5d3b0fdd4dc","versionType":"git"},{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"7731b67bd59d1284d150cbe40a47e95a10613234","versionType":"git"},{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"aa10a452e34810987fb9f4a047995b30003fb53f","versionType":"git"},{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"3c0e8a3179e6325a7dc6ce221aef0e03d854ab4b","versionType":"git"},{"version":"0c8173385e549f95cd80c3fff5aab87b4f881d8d","status":"affected","lessThan":"039cd522dc70151da13329a5e3ae19b1736f468a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/realtek/rtlwifi/pci.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.38","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.38","versionType":"semver"},{"version":"5.10.258","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.209","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.175","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.141","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.91","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.33","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.0.10","status":"unaffected","lessThanOrEqual":"7.0.*","versionType":"semver"},{"version":"7.1","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/rtlwifi/pci.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ae10d4a1ab6bcaa1336abb171908a9a365761d3e"},{"url":"https://git.kernel.org/stable/c/fac1079e0fdec6df6d7562c21941587236dc3def"},{"url":"https://git.kernel.org/stable/c/e40873820c9d245ce482faa7ad514ebdb3b8d23d"},{"url":"https://git.kernel.org/stable/c/008c456b76e9070979bc0e763897a5d3b0fdd4dc"},{"url":"https://git.kernel.org/stable/c/7731b67bd59d1284d150cbe40a47e95a10613234"},{"url":"https://git.kernel.org/stable/c/aa10a452e34810987fb9f4a047995b30003fb53f"},{"url":"https://git.kernel.org/stable/c/3c0e8a3179e6325a7dc6ce221aef0e03d854ab4b"},{"url":"https://git.kernel.org/stable/c/039cd522dc70151da13329a5e3ae19b1736f468a"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-06-24T16:30:45.359Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.38","versionEndExcluding":"5.10.258"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.38","versionEndExcluding":"5.15.209"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.38","versionEndExcluding":"6.1.175"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.38","versionEndExcluding":"6.6.141"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.38","versionEndExcluding":"6.12.91"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.38","versionEndExcluding":"6.18.33"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.38","versionEndExcluding":"7.0.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.38","versionEndExcluding":"7.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}