Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/msm: Avoid NULL dereference in msm_disp_state_print_regs() If the allocation in msm_disp_state_dump_regs() failed then `block->state` can be NULL. The msm_disp_state_print_regs() function _does_ have code to try to handle it with: if (*reg) dump_addr = *reg; ...but since "dump_addr" is initialized to NULL the above is actually a noop. The code then goes on to dereference `dump_addr`. Make the function print "Registers not stored" when it sees a NULL to solve this. Since we're touching the code, fix msm_disp_state_print_regs() not to pointlessly take a double-pointer and properly mark the pointer as `const`. Patchwork: https://patchwork.freedesktop.org/patch/619657/
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 98659487b845c05b6bed85d881713545db674c7c before 42cf045086feae77b212f0f66e742b91a5b566b7; affected 98659487b845c05b6bed85d881713545db674c7c before e8e9f2a12a6214080c8ea83220a596f6e1dedc6c; affected 98659487b845c05b6bed85d881713545db674c7c before f7ad916273483748582d97cfa31054ccb19224f3; affected 98659487b845c05b6bed85d881713545db674c7c before 563aa81fd66a4e7e6e551a0e02bcc23957cafe2f; affected 98659487b845c05b6bed85d881713545db674c7c before 293f53263266bc4340d777268ab4328a97f041fa |
| Linux / Linux | affected 5.14; unaffected 0 before 5.14; unaffected 5.15.170 through 5.15.*; unaffected 6.1.115 through 6.1.*; unaffected 6.6.59 through 6.6.*; unaffected 6.11.6 through 6.11.*; unaffected 6.12 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/42cf045086feae77b212f0f66e742b91a5b566b7
- https://git.kernel.org/stable/c/e8e9f2a12a6214080c8ea83220a596f6e1dedc6c
- https://git.kernel.org/stable/c/f7ad916273483748582d97cfa31054ccb19224f3
- https://git.kernel.org/stable/c/563aa81fd66a4e7e6e551a0e02bcc23957cafe2f
- https://git.kernel.org/stable/c/293f53263266bc4340d777268ab4328a97f041fa
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.