{"id":"CVE-2024-56550","state":"PUBLISHED","title":"s390/stacktrace: Use break instead of return statement","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/stacktrace: Use break instead of return statement\n\narch_stack_walk_user_common() contains a return statement instead of a\nbreak statement in case store_ip() fails while trying to store a callchain\nentry of a user space process.\nThis may lead to a missing pagefault_enable() call.\n\nIf this happens any subsequent page fault of the process won't be resolved\nby the page fault handler and this in turn will lead to the process being\nkilled.\n\nUse a break instead of a return statement to fix this.","publishedAt":"2024-12-27T14:22:52.403Z","updatedAt":"2026-05-23T15:55:38.550Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ebd912ff9919a10609511383d94942362234c077","status":"affected","lessThan":"20c26357826457dc7c8145297e60ddc012e18914","versionType":"git"},{"version":"ebd912ff9919a10609511383d94942362234c077","status":"affected","lessThan":"588a9836a4ef7ec3bfcffda526dfa399637e6cfc","versionType":"git"},{"version":"dd69165ac3dc12d8550aeec3fc4439c084ded3d8","status":"affected","versionType":"git"},{"version":"6.9.4","status":"affected","lessThan":"6.10","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kernel/stacktrace.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.10","versionType":"semver"},{"version":"6.12.4","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kernel/stacktrace.c"]}],"references":["https://git.kernel.org/stable/c/20c26357826457dc7c8145297e60ddc012e18914","https://git.kernel.org/stable/c/588a9836a4ef7ec3bfcffda526dfa399637e6cfc"],"weaknesses":[],"ingestedAt":"2026-10-29T20:08:12.933Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/56xxx/CVE-2024-56550.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-56550","state":"PUBLISHED","datePublished":"2024-12-27T14:22:52.403Z","dateUpdated":"2026-05-23T15:55:38.550Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-27T14:03:05.989Z"},"containers":{"cna":{"title":"s390/stacktrace: Use break instead of return statement","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/stacktrace: Use break instead of return statement\n\narch_stack_walk_user_common() contains a return statement instead of a\nbreak statement in case store_ip() fails while trying to store a callchain\nentry of a user space process.\nThis may lead to a missing pagefault_enable() call.\n\nIf this happens any subsequent page fault of the process won't be resolved\nby the page fault handler and this in turn will lead to the process being\nkilled.\n\nUse a break instead of a return statement to fix this."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ebd912ff9919a10609511383d94942362234c077","status":"affected","lessThan":"20c26357826457dc7c8145297e60ddc012e18914","versionType":"git"},{"version":"ebd912ff9919a10609511383d94942362234c077","status":"affected","lessThan":"588a9836a4ef7ec3bfcffda526dfa399637e6cfc","versionType":"git"},{"version":"dd69165ac3dc12d8550aeec3fc4439c084ded3d8","status":"affected","versionType":"git"},{"version":"6.9.4","status":"affected","lessThan":"6.10","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kernel/stacktrace.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.10","versionType":"semver"},{"version":"6.12.4","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/s390/kernel/stacktrace.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/20c26357826457dc7c8145297e60ddc012e18914"},{"url":"https://git.kernel.org/stable/c/588a9836a4ef7ec3bfcffda526dfa399637e6cfc"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:55:38.550Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.12.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.10","versionEndExcluding":"6.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9.4"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}