Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ftrace: Do not blindly read the ip address in ftrace_bug() It was reported that a bug on arm64 caused a bad ip address to be used for updating into a nop in ftrace_init(), but the error path (rightfully) returned -EINVAL and not -EFAULT, as the bug caused more than one error to occur. But because -EINVAL was returned, the ftrace_bug() tried to report what was at the location of the ip address, and read it directly. This caused the machine to panic, as the ip was not pointing to a valid memory address. Instead, read the ip address with copy_from_kernel_nofault() to safely access the memory, and if it faults, report that the address faulted, otherwise report what was in that location.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 05736a427f7e16be948ccbf39782bd3a6ae16b14 before 0bc62e398bbd9e600959e610def5109957437b28; affected 05736a427f7e16be948ccbf39782bd3a6ae16b14 before 4aedc2bc2b32c93555f47c95610efb89cc1ec09b; affected 05736a427f7e16be948ccbf39782bd3a6ae16b14 before acf671ba79c1feccc3ec7cfdcffead4efcec49e7; affected 05736a427f7e16be948ccbf39782bd3a6ae16b14 before 862dcc14f2803c556bdd73b43c27b023fafce2fb; affected 05736a427f7e16be948ccbf39782bd3a6ae16b14 before 7e4e824b109f1d41ccf223fbb0565d877d6223a2; affected 05736a427f7e16be948ccbf39782bd3a6ae16b14 before 97524384762c1fb9b3ded931498dd2047bd0de81; affected 05736a427f7e16be948ccbf39782bd3a6ae16b14 before 3e4ddeb68751fb4fb657199aed9cfd5d02796875; affected 05736a427f7e16be948ccbf39782bd3a6ae16b14 before 6c14133d2d3f768e0a35128faac8aa6ed4815051 |
| Linux / Linux | affected 2.6.28; unaffected 0 before 2.6.28; unaffected 4.4.273 through 4.4.*; unaffected 4.9.273 through 4.9.*; unaffected 4.14.237 through 4.14.*; unaffected 4.19.195 through 4.19.*; unaffected 5.4.126 through 5.4.*; unaffected 5.10.44 through 5.10.*; unaffected 5.12.11 through 5.12.*; unaffected 5.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/0bc62e398bbd9e600959e610def5109957437b28
- https://git.kernel.org/stable/c/4aedc2bc2b32c93555f47c95610efb89cc1ec09b
- https://git.kernel.org/stable/c/acf671ba79c1feccc3ec7cfdcffead4efcec49e7
- https://git.kernel.org/stable/c/862dcc14f2803c556bdd73b43c27b023fafce2fb
- https://git.kernel.org/stable/c/7e4e824b109f1d41ccf223fbb0565d877d6223a2
- https://git.kernel.org/stable/c/97524384762c1fb9b3ded931498dd2047bd0de81
- https://git.kernel.org/stable/c/3e4ddeb68751fb4fb657199aed9cfd5d02796875
- https://git.kernel.org/stable/c/6c14133d2d3f768e0a35128faac8aa6ed4815051
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/0bc62e398bbd9e600959e610def5109957437b28
- https://git.kernel.org/stable/c/4aedc2bc2b32c93555f47c95610efb89cc1ec09b
- https://git.kernel.org/stable/c/acf671ba79c1feccc3ec7cfdcffead4efcec49e7
- https://git.kernel.org/stable/c/862dcc14f2803c556bdd73b43c27b023fafce2fb
- https://git.kernel.org/stable/c/7e4e824b109f1d41ccf223fbb0565d877d6223a2
- https://git.kernel.org/stable/c/97524384762c1fb9b3ded931498dd2047bd0de81
- https://git.kernel.org/stable/c/3e4ddeb68751fb4fb657199aed9cfd5d02796875
- https://git.kernel.org/stable/c/6c14133d2d3f768e0a35128faac8aa6ed4815051