Description
In the Linux kernel, the following vulnerability has been resolved:
ftrace: Fix softlockup in ftrace_module_enable
A soft lockup was observed when loading amdgpu module. If a module has a lot of tracable functions, multiple calls to kallsyms_lookup can spend too much time in RCU critical section and with disabled preemption, causing kernel panic. This is the same issue that was fixed in commit d0b24b4e91fc ("ftrace: Prevent RCU stall on PREEMPT_VOLUNTARY kernels") and commit 42ea22e754ba ("ftrace: Add cond_resched() to ftrace_graph_set_hash()").
Fix it the same way by adding cond_resched() in ftrace_module_enable.
Metrics
No CVSS score has been published yet.
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c, < a1dd0abd741a8111260676da729825d6c1461a71; >= b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c, < e81e6d6d99b16dae11adbeda5c996317942a940c; >= b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c, < 40c8ee40e48a2c82c762539952ed8fc0571db5bf; >= b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c, < 7e3c96010ade29bb340a5bdce8675f50c7f59001; >= b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c, < 4099b98203d6b33d990586542fa5beee408032a3 |
| Linux | Linux | 4.5 |
References
- https://git.kernel.org/stable/c/4099b98203d6b33d990586542fa5beee408032a3
- https://git.kernel.org/stable/c/40c8ee40e48a2c82c762539952ed8fc0571db5bf
- https://git.kernel.org/stable/c/7e3c96010ade29bb340a5bdce8675f50c7f59001
- https://git.kernel.org/stable/c/a1dd0abd741a8111260676da729825d6c1461a71
- https://git.kernel.org/stable/c/e81e6d6d99b16dae11adbeda5c996317942a940c
Timeline
- Published
- Dec 16, 2025
- Last modified
- Oct 14, 2026
- NVD status
- Deferred