CVE-2023-53815

{"id": "CVE-2023-53815", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "ec8f954a40da8cd3d159713b608e901f0cd909a9", "lessThan": "f1be1ed32daa053484222f7f9beb2b16c624dffd", "versionType": "git"}, {"status": "affected", "version": "ec8f954a40da8cd3d159713b608e901f0cd909a9", "lessThan": "0670c4c567b27bd8f999a943028f4fe60d1a1106", "versionType": "git"}, {"status": "affected", "version": "ec8f954a40da8cd3d159713b608e901f0cd909a9", "lessThan": "e7aff15ba29ba4b3052786b1636fa5c4aa39e179", "versionType": "git"}, {"status": "affected", "version": "ec8f954a40da8cd3d159713b608e901f0cd909a9", "lessThan": "f9bd298e3e4d3fd6e19f017789a42d0f332cd555", "versionType": "git"}, {"status": "affected", "version": "ec8f954a40da8cd3d159713b608e901f0cd909a9", "lessThan": "c1968bb8a28625cc95d2ad3ca872ab98c9c36d59", "versionType": "git"}, {"status": "affected", "version": "ec8f954a40da8cd3d159713b608e901f0cd909a9", "lessThan": "9d9e522010eb5685d8b53e8a24320653d9d4cbbf", "versionType": "git"}], "programFiles": ["kernel/time/posix-timers.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.4"}, {"status": "unaffected", "version": "0", "lessThan": "5.4", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.188", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.121", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.39", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.3.13", "versionType": "semver", "lessThanOrEqual": "6.3.*"}, {"status": "unaffected", "version": "6.4.4", "versionType": "semver", "lessThanOrEqual": "6.4.*"}, {"status": "unaffected", "version": "6.5", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["kernel/time/posix-timers.c"], "defaultStatus": "affected"}]}], "published": "2025-12-09T01:16:53.717", "references": [{"url": "https://git.kernel.org/stable/c/0670c4c567b27bd8f999a943028f4fe60d1a1106", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9d9e522010eb5685d8b53e8a24320653d9d4cbbf", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/c1968bb8a28625cc95d2ad3ca872ab98c9c36d59", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e7aff15ba29ba4b3052786b1636fa5c4aa39e179", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f1be1ed32daa053484222f7f9beb2b16c624dffd", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f9bd298e3e4d3fd6e19f017789a42d0f332cd555", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Deferred", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nposix-timers: Prevent RT livelock in itimer_delete()\n\nitimer_delete() has a retry loop when the timer is concurrently expired. On\nnon-RT kernels this just spin-waits until the timer callback has completed,\nexcept for posix CPU timers which have HAVE_POSIX_CPU_TIMERS_TASK_WORK\nenabled.\n\nIn that case and on RT kernels the existing task could live lock when\npreempting the task which does the timer delivery.\n\nReplace spin_unlock() with an invocation of timer_wait_running() to handle\nit the same way as the other retry loops in the posix timer code."}], "lastModified": "2026-06-17T06:46:07.220", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}