{"id":"CVE-2024-35955","state":"PUBLISHED","title":"kprobes: Fix possible use-after-free issue on kprobe registration","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nkprobes: Fix possible use-after-free issue on kprobe registration\n\nWhen unloading a module, its state is changing MODULE_STATE_LIVE ->\n MODULE_STATE_GOING -> MODULE_STATE_UNFORMED. Each change will take\na time. `is_module_text_address()` and `__module_text_address()`\nworks with MODULE_STATE_LIVE and MODULE_STATE_GOING.\nIf we use `is_module_text_address()` and `__module_text_address()`\nseparately, there is a chance that the first one is succeeded but the\nnext one is failed because module->state becomes MODULE_STATE_UNFORMED\nbetween those operations.\n\nIn `check_kprobe_address_safe()`, if the second `__module_text_address()`\nis failed, that is ignored because it expected a kernel_text address.\nBut it may have failed simply because module->state has been changed\nto MODULE_STATE_UNFORMED. In this case, arm_kprobe() will try to modify\nnon-exist module text address (use-after-free).\n\nTo fix this problem, we should not use separated `is_module_text_address()`\nand `__module_text_address()`, but use only `__module_text_address()`\nonce and do `try_module_get(module)` which is only available with\nMODULE_STATE_LIVE.","publishedAt":"2024-05-20T09:41:48.607Z","updatedAt":"2026-10-15T00:41:40.501Z","severity":{"score":8.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1c836bad43f3e2ff71cc397a6e6ccb4e7bd116f8","status":"affected","lessThan":"b5808d40093403334d939e2c3c417144d12a6f33","versionType":"git"},{"version":"6a119c1a584aa7a2c6216458f1f272bf1bc93a93","status":"affected","lessThan":"93eb31e7c3399e326259f2caa17be1e821f5a412","versionType":"git"},{"version":"2a49b025c36ae749cee7ccc4b7e456e02539cdc3","status":"affected","lessThan":"5062d1f4f07facbdade0f402d9a04a788f52e26d","versionType":"git"},{"version":"a1edb85e60fdab1e14db63ae8af8db3f0d798fb6","status":"affected","lessThan":"2df2dd27066cdba8041e46a64362325626bdfb2e","versionType":"git"},{"version":"28f6c37a2910f565b4f5960df52b2eccae28c891","status":"affected","lessThan":"62029bc9ff2c17a4e3a2478d83418ec575413808","versionType":"git"},{"version":"28f6c37a2910f565b4f5960df52b2eccae28c891","status":"affected","lessThan":"d15023fb407337028a654237d8968fefdcf87c2f","versionType":"git"},{"version":"28f6c37a2910f565b4f5960df52b2eccae28c891","status":"affected","lessThan":"36b57c7d2f8b7de224980f1a284432846ad71ca0","versionType":"git"},{"version":"28f6c37a2910f565b4f5960df52b2eccae28c891","status":"affected","lessThan":"325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8","versionType":"git"},{"version":"4262b6eb057d86c7829168c541654fe0d48fdac8","status":"affected","versionType":"git"},{"version":"97e813e6a143edf4208e15c72199c495ed80cea5","status":"affected","versionType":"git"},{"version":"16a544f1e013ba0660612f3fe35393b143b19a84","status":"affected","versionType":"git"},{"version":"4.19.256","status":"affected","lessThan":"4.19.313","versionType":"semver"},{"version":"5.4.211","status":"affected","lessThan":"5.4.275","versionType":"semver"},{"version":"5.10.137","status":"affected","lessThan":"5.10.216","versionType":"semver"},{"version":"5.15.61","status":"affected","lessThan":"5.15.157","versionType":"semver"},{"version":"4.14.291","status":"affected","lessThan":"4.15","versionType":"semver"},{"version":"5.18.18","status":"affected","lessThan":"5.19","versionType":"semver"},{"version":"5.19.2","status":"affected","lessThan":"5.20","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/kprobes.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"4.19.313","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.275","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.216","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.157","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.87","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.28","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.8.7","status":"unaffected","lessThanOrEqual":"6.8.*","versionType":"semver"},{"version":"6.9","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/kprobes.c"]}],"references":["https://git.kernel.org/stable/c/b5808d40093403334d939e2c3c417144d12a6f33","https://git.kernel.org/stable/c/93eb31e7c3399e326259f2caa17be1e821f5a412","https://git.kernel.org/stable/c/5062d1f4f07facbdade0f402d9a04a788f52e26d","https://git.kernel.org/stable/c/2df2dd27066cdba8041e46a64362325626bdfb2e","https://git.kernel.org/stable/c/62029bc9ff2c17a4e3a2478d83418ec575413808","https://git.kernel.org/stable/c/d15023fb407337028a654237d8968fefdcf87c2f","https://git.kernel.org/stable/c/36b57c7d2f8b7de224980f1a284432846ad71ca0","https://git.kernel.org/stable/c/325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8","https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html","https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html","https://cert-portal.siemens.com/productcert/html/ssa-265688.html","https://cert-portal.siemens.com/productcert/html/ssa-613116.html"],"weaknesses":["CWE-416"],"ingestedAt":"2026-10-29T20:07:30.303Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/35xxx/CVE-2024-35955.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-35955","state":"PUBLISHED","datePublished":"2024-05-20T09:41:48.607Z","dateUpdated":"2026-10-15T00:41:40.501Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-05-17T13:50:33.136Z"},"containers":{"cna":{"title":"kprobes: Fix possible use-after-free issue on kprobe registration","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nkprobes: Fix possible use-after-free issue on kprobe registration\n\nWhen unloading a module, its state is changing MODULE_STATE_LIVE ->\n MODULE_STATE_GOING -> MODULE_STATE_UNFORMED. Each change will take\na time. `is_module_text_address()` and `__module_text_address()`\nworks with MODULE_STATE_LIVE and MODULE_STATE_GOING.\nIf we use `is_module_text_address()` and `__module_text_address()`\nseparately, there is a chance that the first one is succeeded but the\nnext one is failed because module->state becomes MODULE_STATE_UNFORMED\nbetween those operations.\n\nIn `check_kprobe_address_safe()`, if the second `__module_text_address()`\nis failed, that is ignored because it expected a kernel_text address.\nBut it may have failed simply because module->state has been changed\nto MODULE_STATE_UNFORMED. In this case, arm_kprobe() will try to modify\nnon-exist module text address (use-after-free).\n\nTo fix this problem, we should not use separated `is_module_text_address()`\nand `__module_text_address()`, but use only `__module_text_address()`\nonce and do `try_module_get(module)` which is only available with\nMODULE_STATE_LIVE."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1c836bad43f3e2ff71cc397a6e6ccb4e7bd116f8","status":"affected","lessThan":"b5808d40093403334d939e2c3c417144d12a6f33","versionType":"git"},{"version":"6a119c1a584aa7a2c6216458f1f272bf1bc93a93","status":"affected","lessThan":"93eb31e7c3399e326259f2caa17be1e821f5a412","versionType":"git"},{"version":"2a49b025c36ae749cee7ccc4b7e456e02539cdc3","status":"affected","lessThan":"5062d1f4f07facbdade0f402d9a04a788f52e26d","versionType":"git"},{"version":"a1edb85e60fdab1e14db63ae8af8db3f0d798fb6","status":"affected","lessThan":"2df2dd27066cdba8041e46a64362325626bdfb2e","versionType":"git"},{"version":"28f6c37a2910f565b4f5960df52b2eccae28c891","status":"affected","lessThan":"62029bc9ff2c17a4e3a2478d83418ec575413808","versionType":"git"},{"version":"28f6c37a2910f565b4f5960df52b2eccae28c891","status":"affected","lessThan":"d15023fb407337028a654237d8968fefdcf87c2f","versionType":"git"},{"version":"28f6c37a2910f565b4f5960df52b2eccae28c891","status":"affected","lessThan":"36b57c7d2f8b7de224980f1a284432846ad71ca0","versionType":"git"},{"version":"28f6c37a2910f565b4f5960df52b2eccae28c891","status":"affected","lessThan":"325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8","versionType":"git"},{"version":"4262b6eb057d86c7829168c541654fe0d48fdac8","status":"affected","versionType":"git"},{"version":"97e813e6a143edf4208e15c72199c495ed80cea5","status":"affected","versionType":"git"},{"version":"16a544f1e013ba0660612f3fe35393b143b19a84","status":"affected","versionType":"git"},{"version":"4.19.256","status":"affected","lessThan":"4.19.313","versionType":"semver"},{"version":"5.4.211","status":"affected","lessThan":"5.4.275","versionType":"semver"},{"version":"5.10.137","status":"affected","lessThan":"5.10.216","versionType":"semver"},{"version":"5.15.61","status":"affected","lessThan":"5.15.157","versionType":"semver"},{"version":"4.14.291","status":"affected","lessThan":"4.15","versionType":"semver"},{"version":"5.18.18","status":"affected","lessThan":"5.19","versionType":"semver"},{"version":"5.19.2","status":"affected","lessThan":"5.20","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/kprobes.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"4.19.313","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.275","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.216","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.157","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.87","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.28","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.8.7","status":"unaffected","lessThanOrEqual":"6.8.*","versionType":"semver"},{"version":"6.9","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/kprobes.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/b5808d40093403334d939e2c3c417144d12a6f33"},{"url":"https://git.kernel.org/stable/c/93eb31e7c3399e326259f2caa17be1e821f5a412"},{"url":"https://git.kernel.org/stable/c/5062d1f4f07facbdade0f402d9a04a788f52e26d"},{"url":"https://git.kernel.org/stable/c/2df2dd27066cdba8041e46a64362325626bdfb2e"},{"url":"https://git.kernel.org/stable/c/62029bc9ff2c17a4e3a2478d83418ec575413808"},{"url":"https://git.kernel.org/stable/c/d15023fb407337028a654237d8968fefdcf87c2f"},{"url":"https://git.kernel.org/stable/c/36b57c7d2f8b7de224980f1a284432846ad71ca0"},{"url":"https://git.kernel.org/stable/c/325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:45:28.228Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.256","versionEndExcluding":"4.19.313"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.211","versionEndExcluding":"5.4.275"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.137","versionEndExcluding":"5.10.216"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.61","versionEndExcluding":"5.15.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1.87"},{"vulnerable":true,"criteria":"cpe: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