{"id":"CVE-2024-35955","summary":"kprobes: Fix possible use-after-free issue on kprobe registration","details":"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 -\u003e\n MODULE_STATE_GOING -\u003e 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-\u003estate 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-\u003estate 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.","modified":"2026-04-02T11:59:50.959444Z","published":"2024-05-20T09:41:48.607Z","related":["SUSE-SU-2024:1979-1","SUSE-SU-2024:1983-1","SUSE-SU-2024:2008-1","SUSE-SU-2024:2019-1","SUSE-SU-2024:2135-1","SUSE-SU-2024:2184-1","SUSE-SU-2024:2190-1","SUSE-SU-2024:2203-1","SUSE-SU-2024:2973-1","SUSE-SU-2025:20008-1","SUSE-SU-2025:20028-1","SUSE-SU-2025:20166-1","SUSE-SU-2025:20249-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/35xxx/CVE-2024-35955.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2df2dd27066cdba8041e46a64362325626bdfb2e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/36b57c7d2f8b7de224980f1a284432846ad71ca0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5062d1f4f07facbdade0f402d9a04a788f52e26d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/62029bc9ff2c17a4e3a2478d83418ec575413808"},{"type":"WEB","url":"https://git.kernel.org/stable/c/93eb31e7c3399e326259f2caa17be1e821f5a412"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b5808d40093403334d939e2c3c417144d12a6f33"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d15023fb407337028a654237d8968fefdcf87c2f"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/35xxx/CVE-2024-35955.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-35955"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"1c836bad43f3e2ff71cc397a6e6ccb4e7bd116f8"},{"fixed":"b5808d40093403334d939e2c3c417144d12a6f33"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6a119c1a584aa7a2c6216458f1f272bf1bc93a93"},{"fixed":"93eb31e7c3399e326259f2caa17be1e821f5a412"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"2a49b025c36ae749cee7ccc4b7e456e02539cdc3"},{"fixed":"5062d1f4f07facbdade0f402d9a04a788f52e26d"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"a1edb85e60fdab1e14db63ae8af8db3f0d798fb6"},{"fixed":"2df2dd27066cdba8041e46a64362325626bdfb2e"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"28f6c37a2910f565b4f5960df52b2eccae28c891"},{"fixed":"62029bc9ff2c17a4e3a2478d83418ec575413808"},{"fixed":"d15023fb407337028a654237d8968fefdcf87c2f"},{"fixed":"36b57c7d2f8b7de224980f1a284432846ad71ca0"},{"fixed":"325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"4262b6eb057d86c7829168c541654fe0d48fdac8"},{"last_affected":"97e813e6a143edf4208e15c72199c495ed80cea5"},{"last_affected":"16a544f1e013ba0660612f3fe35393b143b19a84"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-35955.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}