Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: MIPS: mm: Fix out-of-bounds write in maar_res_walk() maar_res_walk() uses wi->num_cfg as the index into the fixed-size wi->cfg array, but checks whether the array is full only after it has filled the selected entry. If walk_system_ram_range() reports more than 16 memory ranges, the overflow call writes one struct maar_config past the end of the array before WARN_ON() prevents num_cfg from advancing. Move the full-array check before taking the array slot and return non-zero when the scratch array is full, so walk_system_ram_range() terminates the walk instead of invoking the callback for further ranges.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected a5718fe8f70f33b1b5b47a153057cfdd19684598 before a594100e147a6a67eb29189170f1df3645cda12b; affected a5718fe8f70f33b1b5b47a153057cfdd19684598 before 8b3e0c1c63015deaf084286899f5b2d0526715de; affected a5718fe8f70f33b1b5b47a153057cfdd19684598 before 44c1d902cf0798b60762a7a98be992b9f5ded7dd; affected a5718fe8f70f33b1b5b47a153057cfdd19684598 before ac7385af1dca86a5ea704c80ca4dc822083ff9e2; affected a5718fe8f70f33b1b5b47a153057cfdd19684598 before 431812eb88c200bc3ec33b88782c8cc415842074; affected a5718fe8f70f33b1b5b47a153057cfdd19684598 before 92f38fe85198ace9b211bc7712b7951acfb94560; affected a5718fe8f70f33b1b5b47a153057cfdd19684598 before 038f068cced8e9c49e8c419f3112d909ad366a3a; affected a5718fe8f70f33b1b5b47a153057cfdd19684598 before 1b001b16bc88f3f7817e228acfd91ee01bdcfcce |
| Linux / Linux | affected 5.4; unaffected 0 before 5.4; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/a594100e147a6a67eb29189170f1df3645cda12b
- https://git.kernel.org/stable/c/8b3e0c1c63015deaf084286899f5b2d0526715de
- https://git.kernel.org/stable/c/44c1d902cf0798b60762a7a98be992b9f5ded7dd
- https://git.kernel.org/stable/c/ac7385af1dca86a5ea704c80ca4dc822083ff9e2
- https://git.kernel.org/stable/c/431812eb88c200bc3ec33b88782c8cc415842074
- https://git.kernel.org/stable/c/92f38fe85198ace9b211bc7712b7951acfb94560
- https://git.kernel.org/stable/c/038f068cced8e9c49e8c419f3112d909ad366a3a
- https://git.kernel.org/stable/c/1b001b16bc88f3f7817e228acfd91ee01bdcfcce