CVE-2025-68173
Published: Dec 16, 2025
Modified: May 11, 2026
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.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c - < a1dd0abd741a8111260676da729825d6c1461a71affected b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c - < e81e6d6d99b16dae11adbeda5c996317942a940caffected b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c - < 40c8ee40e48a2c82c762539952ed8fc0571db5bfaffected b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c - < 7e3c96010ade29bb340a5bdce8675f50c7f59001affected b7ffffbb46f205e7727a18bcc7a46c3c2b534f7c - < 4099b98203d6b33d990586542fa5beee408032a3 |
Linux | Linux | affected 4.5unaffected 0 - < 4.5unaffected 6.1.159 - <= 6.1.*unaffected 6.6.117 - <= 6.6.*unaffected 6.12.58 - <= 6.12.*+2 more versions |
References
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