Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: mtd: spi-nor: debugfs: fix out-of-bounds read in spi_nor_params_show() Sashiko noticed an out-of-bounds read [1]. In spi_nor_params_show(), the snor_f_names array is passed to spi_nor_print_flags() using sizeof(snor_f_names). Since snor_f_names is an array of pointers, sizeof() returns the total number of bytes occupied by the pointers (element_count * sizeof(void *)) rather than the element count itself. On 64-bit systems, this makes the passed length 8x larger than intended. Inside spi_nor_print_flags(), the 'names_len' argument is used to bounds-check the 'names' array access. An out-of-bounds read occurs if a flag bit is set that exceeds the array's actual element count but is within the inflated byte-size count. Correct this by using ARRAY_SIZE() to pass the actual number of string pointers in the array.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 0257be79fc4a16a3252ce80aa13b3640f728c425 before 231b8e1f604f6e0a7e100536f506cdf482e2c5f5; affected 0257be79fc4a16a3252ce80aa13b3640f728c425 before 9a80c458320e0514e11945402dd6e48fcee05524; affected 0257be79fc4a16a3252ce80aa13b3640f728c425 before ca18c180b053f6ce80394322b314ac721c316af7; affected 0257be79fc4a16a3252ce80aa13b3640f728c425 before 34bdcfb496b29f9a52431194f94473b37fb8c162; affected 0257be79fc4a16a3252ce80aa13b3640f728c425 before c0b654bc0b76a1da102d9138be1ed1223bd99310; affected 0257be79fc4a16a3252ce80aa13b3640f728c425 before e47029b977e747cb3a9174308fd55762cce70147 |
| Linux / Linux | affected 5.19; unaffected 0 before 5.19; unaffected 6.1.176 through 6.1.*; unaffected 6.6.140 through 6.6.*; unaffected 6.12.88 through 6.12.*; unaffected 6.18.30 through 6.18.*; unaffected 7.0.7 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/231b8e1f604f6e0a7e100536f506cdf482e2c5f5
- https://git.kernel.org/stable/c/9a80c458320e0514e11945402dd6e48fcee05524
- https://git.kernel.org/stable/c/ca18c180b053f6ce80394322b314ac721c316af7
- https://git.kernel.org/stable/c/34bdcfb496b29f9a52431194f94473b37fb8c162
- https://git.kernel.org/stable/c/c0b654bc0b76a1da102d9138be1ed1223bd99310
- https://git.kernel.org/stable/c/e47029b977e747cb3a9174308fd55762cce70147
ADP enrichment
No English description supplied.