The bad_mode function in arch/arm64/kernel/traps.c in the Linux kernel before 3.9.5 on the ARM64 platform allows local users to cause a denial of service (system crash) via vectors involving an attempted register access that triggers an unexpected value in the Exception Syndrome Register (ESR).
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Linux_kernel | Linux | * | 3.9.4 (including) |
| Linux_kernel | Linux | 3.9.0 (including) | 3.9.0 (including) |
| Linux_kernel | Linux | 3.9.1 (including) | 3.9.1 (including) |
| Linux_kernel | Linux | 3.9.2 (including) | 3.9.2 (including) |
| Linux_kernel | Linux | 3.9.3 (including) | 3.9.3 (including) |
| Linux-fsl-imx51 | Ubuntu | lucid | * |
| Linux-linaro-omap | Ubuntu | precise | * |
| Linux-linaro-omap | Ubuntu | quantal | * |
| Linux-linaro-shared | Ubuntu | precise | * |
| Linux-linaro-shared | Ubuntu | quantal | * |
| Linux-linaro-vexpress | Ubuntu | precise | * |
| Linux-linaro-vexpress | Ubuntu | quantal | * |
| Linux-mvl-dove | Ubuntu | lucid | * |
| Linux-qcm-msm | Ubuntu | lucid | * |
| Linux-qcm-msm | Ubuntu | precise | * |
| Linux-qcm-msm | Ubuntu | quantal | * |
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9955ac47f4ba1c95ecb6092aeaefb40a22e99268
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.9.5
- http://www.openwall.com/lists/oss-security/2013/08/08/12
- https://bugzilla.redhat.com/show_bug.cgi?id=996380
- https://github.com/torvalds/linux/commit/9955ac47f4ba1c95ecb6092aeaefb40a22e99268
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9955ac47f4ba1c95ecb6092aeaefb40a22e99268
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.9.5
- http://www.openwall.com/lists/oss-security/2013/08/08/12
- https://bugzilla.redhat.com/show_bug.cgi?id=996380
- https://github.com/torvalds/linux/commit/9955ac47f4ba1c95ecb6092aeaefb40a22e99268