{"id":"CVE-2026-80860","state":"PUBLISHED","title":"fuse: fix race between interrupt and resend","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: fix race between interrupt and resend\n\nAfter commit f8fce75fedf7 (\"fuse: clear intr_entry in fuse_resend and\nfuse_remove_pending_req\") the WARN_ON(!list_empty(&req->intr_entry)) in\nfuse_request_free() still triggers due to the following race:\n\nIn request_wait_answer()\n  if (test_bit(FR_SENT, &req->flags)) -> returns true\n\nIn fuse_chan_resend()\n  clear_bit(FR_SENT, &req->flags)\n\nIn request_wait_answer()\n  queue_interrupt(req)\n\nFix by:\n\n - move clearing FR_SENT inside fpq->lock\n\n - move setting FR_PENDING inside fiq->lock\n\n - recheck FR_SENT after acquiring fiq->lock in fuse_dev_queue_interrupt()","publishedAt":"2026-09-04T15:55:14.285Z","updatedAt":"2026-10-19T08:44:54.232Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1d8ecd0cd696a5df0b2f72046a4ccee5d2a8ec2c","status":"affected","lessThan":"67ddf061790e833d7e34f9dc901866c9fb25d72d","versionType":"git"},{"version":"7366e6f4d2b4c7002b13fb01219e83679dad4127","status":"affected","lessThan":"0f930904452945f409eeeb0c9afa08bf27185cb1","versionType":"git"},{"version":"f8fce75fedf73ac72aa09163deb8f4291fdcaad2","status":"affected","lessThan":"26fbe4bc3ef3ab0200407681cbef182af5d151de","versionType":"git"},{"version":"f8fce75fedf73ac72aa09163deb8f4291fdcaad2","status":"affected","lessThan":"ed9c881f3b498383f73c42712b359419da42a7b0","versionType":"git"},{"version":"893479015cb6442fd389d3b553ab3036c9541715","status":"affected","versionType":"git"},{"version":"6.12.96","status":"affected","lessThan":"6.12.111","versionType":"semver"},{"version":"6.18.39","status":"affected","lessThan":"6.18.51","versionType":"semver"},{"version":"7.1.4","status":"affected","lessThan":"7.2","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/fuse/dev.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"7.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"7.2","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.51","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.3","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/fuse/dev.c"]}],"references":["https://git.kernel.org/stable/c/67ddf061790e833d7e34f9dc901866c9fb25d72d","https://git.kernel.org/stable/c/0f930904452945f409eeeb0c9afa08bf27185cb1","https://git.kernel.org/stable/c/26fbe4bc3ef3ab0200407681cbef182af5d151de","https://git.kernel.org/stable/c/ed9c881f3b498383f73c42712b359419da42a7b0"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/80xxx/CVE-2026-80860.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80860","state":"PUBLISHED","datePublished":"2026-09-04T15:55:14.285Z","dateUpdated":"2026-10-19T08:44:54.232Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-26T14:34:25.797Z"},"containers":{"cna":{"title":"fuse: fix race between interrupt and resend","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfuse: fix race between interrupt and resend\n\nAfter commit f8fce75fedf7 (\"fuse: clear intr_entry in fuse_resend and\nfuse_remove_pending_req\") the WARN_ON(!list_empty(&req->intr_entry)) in\nfuse_request_free() still triggers due to the following race:\n\nIn request_wait_answer()\n  if (test_bit(FR_SENT, &req->flags)) -> returns true\n\nIn fuse_chan_resend()\n  clear_bit(FR_SENT, &req->flags)\n\nIn request_wait_answer()\n  queue_interrupt(req)\n\nFix by:\n\n - move clearing FR_SENT inside fpq->lock\n\n - move setting FR_PENDING inside fiq->lock\n\n - recheck FR_SENT after acquiring fiq->lock in fuse_dev_queue_interrupt()"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1d8ecd0cd696a5df0b2f72046a4ccee5d2a8ec2c","status":"affected","lessThan":"67ddf061790e833d7e34f9dc901866c9fb25d72d","versionType":"git"},{"version":"7366e6f4d2b4c7002b13fb01219e83679dad4127","status":"affected","lessThan":"0f930904452945f409eeeb0c9afa08bf27185cb1","versionType":"git"},{"version":"f8fce75fedf73ac72aa09163deb8f4291fdcaad2","status":"affected","lessThan":"26fbe4bc3ef3ab0200407681cbef182af5d151de","versionType":"git"},{"version":"f8fce75fedf73ac72aa09163deb8f4291fdcaad2","status":"affected","lessThan":"ed9c881f3b498383f73c42712b359419da42a7b0","versionType":"git"},{"version":"893479015cb6442fd389d3b553ab3036c9541715","status":"affected","versionType":"git"},{"version":"6.12.96","status":"affected","lessThan":"6.12.111","versionType":"semver"},{"version":"6.18.39","status":"affected","lessThan":"6.18.51","versionType":"semver"},{"version":"7.1.4","status":"affected","lessThan":"7.2","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/fuse/dev.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"7.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"7.2","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.51","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.3","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/fuse/dev.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/67ddf061790e833d7e34f9dc901866c9fb25d72d"},{"url":"https://git.kernel.org/stable/c/0f930904452945f409eeeb0c9afa08bf27185cb1"},{"url":"https://git.kernel.org/stable/c/26fbe4bc3ef3ab0200407681cbef182af5d151de"},{"url":"https://git.kernel.org/stable/c/ed9c881f3b498383f73c42712b359419da42a7b0"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T08:44:54.232Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.96","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18.39","versionEndExcluding":"6.18.51"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.2","versionEndExcluding":"7.2.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.2","versionEndExcluding":"7.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.1.4"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}