Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1c836bad43f3e2ff71cc397a6e6ccb4e7bd116f8 before b5808d40093403334d939e2c3c417144d12a6f33; affected 6a119c1a584aa7a2c6216458f1f272bf1bc93a93 before 93eb31e7c3399e326259f2caa17be1e821f5a412; affected 2a49b025c36ae749cee7ccc4b7e456e02539cdc3 before 5062d1f4f07facbdade0f402d9a04a788f52e26d; affected a1edb85e60fdab1e14db63ae8af8db3f0d798fb6 before 2df2dd27066cdba8041e46a64362325626bdfb2e; affected 28f6c37a2910f565b4f5960df52b2eccae28c891 before 62029bc9ff2c17a4e3a2478d83418ec575413808; affected 28f6c37a2910f565b4f5960df52b2eccae28c891 before d15023fb407337028a654237d8968fefdcf87c2f; affected 28f6c37a2910f565b4f5960df52b2eccae28c891 before 36b57c7d2f8b7de224980f1a284432846ad71ca0; affected 28f6c37a2910f565b4f5960df52b2eccae28c891 before 325f3fb551f8cd672dbbfc4cf58b14f9ee3fc9e8; affected 4262b6eb057d86c7829168c541654fe0d48fdac8; affected 97e813e6a143edf4208e15c72199c495ed80cea5; affected 16a544f1e013ba0660612f3fe35393b143b19a84; affected 4.19.256 before 4.19.313; affected 5.4.211 before 5.4.275; affected 5.10.137 before 5.10.216; affected 5.15.61 before 5.15.157; affected 4.14.291 before 4.15; affected 5.18.18 before 5.19; affected 5.19.2 before 5.20 |
| Linux / Linux | affected 6.0; unaffected 0 before 6.0; unaffected 4.19.313 through 4.19.*; unaffected 5.4.275 through 5.4.*; unaffected 5.10.216 through 5.10.*; unaffected 5.15.157 through 5.15.*; unaffected 6.1.87 through 6.1.*; unaffected 6.6.28 through 6.6.*; unaffected 6.8.7 through 6.8.*; unaffected 6.9 through * |
CWE
No CWE identifiers supplied.
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
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- 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
No English description supplied.