CVE-2024-35955kprobes: Fix possible use-after-free issue on kprobe registration

Description

In the Linux kernel, the following vulnerability has been resolved: kprobes: Fix possible use-after-free issue on kprobe registration When unloading a module, its state is changing MODULE_STATE_LIVE -> MODULE_STATE_GOING -> MODULE_STATE_UNFORMED. Each change will take a time. `is_module_text_address()` and `__module_text_address()` works with MODULE_STATE_LIVE and MODULE_STATE_GOING. If we use `is_module_text_address()` and `__module_text_address()` separately, there is a chance that the first one is succeeded but the next one is failed because module->state becomes MODULE_STATE_UNFORMED between those operations. In `check_kprobe_address_safe()`, if the second `__module_text_address()` is failed, that is ignored because it expected a kernel_text address. But it may have failed simply because module->state has been changed to MODULE_STATE_UNFORMED. In this case, arm_kprobe() will try to modify non-exist module text address (use-after-free). To fix this problem, we should not use separated `is_module_text_address()` and `__module_text_address()`, but use only `__module_text_address()` once and do `try_module_get(module)` which is only available with MODULE_STATE_LIVE.

Timeline

Scores

EPSS (exploitation in 30 days)

1.2% · top 32% of all CVEs (15 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.

Affected products

• Linux · Linux

  • affected 1c836bad43f3e2ff71cc397a6e6ccb4e7bd116f8 – < b5808d40093403334d939e2c3c417144d12a6f33
  • affected 6a119c1a584aa7a2c6216458f1f272bf1bc93a93 – < 93eb31e7c3399e326259f2caa17be1e821f5a412
  • affected 2a49b025c36ae749cee7ccc4b7e456e02539cdc3 – < 5062d1f4f07facbdade0f402d9a04a788f52e26d
  • affected a1edb85e60fdab1e14db63ae8af8db3f0d798fb6 – < 2df2dd27066cdba8041e46a64362325626bdfb2e
  • affected 28f6c37a2910f565b4f5960df52b2eccae28c891 – < 62029bc9ff2c17a4e3a2478d83418ec575413808
  • affected 28f6c37a2910f565b4f5960df52b2eccae28c891 – < d15023fb407337028a654237d8968fefdcf87c2f
  • affected 28f6c37a2910f565b4f5960df52b2eccae28c891 – < 36b57c7d2f8b7de224980f1a284432846ad71ca0
  • affected 28f6c37a2910f565b4f5960df52b2eccae28c891 – < 325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8
  • affected 4262b6eb057d86c7829168c541654fe0d48fdac8
  • affected 97e813e6a143edf4208e15c72199c495ed80cea5
  • affected 16a544f1e013ba0660612f3fe35393b143b19a84
  • affected 4.19.256 – < 4.19.313
  • affected 5.4.211 – < 5.4.275
  • affected 5.10.137 – < 5.10.216
  • affected 5.15.61 – < 5.15.157
  • affected 4.14.291 – < 4.15
  • affected 5.18.18 – < 5.19
  • affected 5.19.2 – < 5.20

• Linux · Linux

  • affected 6.0
  • unaffected < 6.0
  • unaffected 4.19.313 – ≤ 4.19.*
  • unaffected 5.4.275 – ≤ 5.4.*
  • unaffected 5.10.216 – ≤ 5.10.*
  • unaffected 5.15.157 – ≤ 5.15.*
  • unaffected 6.1.87 – ≤ 6.1.*
  • unaffected 6.6.28 – ≤ 6.6.*
  • unaffected 6.8.7 – ≤ 6.8.*
  • unaffected 6.9 – ≤ *

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• EUVD EUVD-2024-35673 (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2024-35955](https://cveledger.app/badge/CVE-2024-35955.svg)](https://cveledger.app/cve/CVE-2024-35955)

Record last updated 15 Oct 2026, 00:41 UTC.