vulnerability
Ubuntu: (CVE-2023-54245): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:L/Au:S/C:N/I:N/A:C) | Jan 2, 2026 | Jan 6, 2026 | Jan 7, 2026 |
Description
In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: tx-macro: Fix for KASAN: slab-out-of-bounds When we run syzkaller we get below Out of Bound. "KASAN: slab-out-of-bounds Read in regcache_flat_read" Below is the backtrace of the issue: dump_backtrace+0x0/0x4c8 show_stack+0x34/0x44 dump_stack_lvl+0xd8/0x118 print_address_description+0x30/0x2d8 kasan_report+0x158/0x198 __asan_report_load4_noabort+0x44/0x50 regcache_flat_read+0x10c/0x110 regcache_read+0xf4/0x180 _regmap_read+0xc4/0x278 _regmap_update_bits+0x130/0x290 regmap_update_bits_base+0xc0/0x15c snd_soc_component_update_bits+0xa8/0x22c snd_soc_component_write_field+0x68/0xd4 tx_macro_digital_mute+0xec/0x140 Actually There is no need to have decimator with 32 bits. By limiting the variable with short type u8 issue is resolved.
Solutions
References
- CVE-2023-54245
- https://attackerkb.com/topics/CVE-2023-54245
- URL-https://git.kernel.org/linus/e5e7e398f6bb7918dab0612eb6991f7bae95520d
- URL-https://git.kernel.org/stable/c/57f9a9a232bde7abfe49c3072b29a255da9ba891
- URL-https://git.kernel.org/stable/c/b0cd740a31412340fead50e69e4fe9bc3781c754
- URL-https://git.kernel.org/stable/c/da35a4e6eee5d73886312e85322a6e97df901987
- URL-https://git.kernel.org/stable/c/e5e7e398f6bb7918dab0612eb6991f7bae95520d
- URL-https://www.cve.org/CVERecord?id=CVE-2023-54245
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