CVE-2022-49515

HIGH

Linux Kernel - Out-of-bounds Read in CS35L41 OTP Unpack Function

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: cs35l41: Fix an out-of-bounds access in otp_packed_element_t The CS35L41_NUM_OTP_ELEM is 100, but only 99 entries are defined in the array otp_map_1/2[CS35L41_NUM_OTP_ELEM], this will trigger UBSAN to report a shift-out-of-bounds warning in the cs35l41_otp_unpack() since the last entry in the array will result in GENMASK(-1, 0). UBSAN reports this problem: UBSAN: shift-out-of-bounds in /home/hwang4/build/jammy/jammy/sound/soc/codecs/cs35l41-lib.c:836:8 shift exponent 64 is too large for 64-bit type 'long unsigned int' CPU: 10 PID: 595 Comm: systemd-udevd Not tainted 5.15.0-23-generic #23 Hardware name: LENOVO \x02MFG_IN_GO/\x02MFG_IN_GO, BIOS N3GET19W (1.00 ) 03/11/2022 Call Trace: <TASK> show_stack+0x52/0x58 dump_stack_lvl+0x4a/0x5f dump_stack+0x10/0x12 ubsan_epilogue+0x9/0x45 __ubsan_handle_shift_out_of_bounds.cold+0x61/0xef ? regmap_unlock_mutex+0xe/0x10 cs35l41_otp_unpack.cold+0x1c6/0x2b2 [snd_soc_cs35l41_lib] cs35l41_hda_probe+0x24f/0x33a [snd_hda_scodec_cs35l41] cs35l41_hda_i2c_probe+0x65/0x90 [snd_hda_scodec_cs35l41_i2c] ? cs35l41_hda_i2c_remove+0x20/0x20 [snd_hda_scodec_cs35l41_i2c] i2c_device_probe+0x252/0x2b0

Scores

CVSS v3 7.1
EPSS 0.0024
EPSS Percentile 15.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Details

CWE
CWE-125
Status published
Products (11)
linux/Kernel 5.16.0 - 5.17.14linux
linux/Kernel 5.18.0 - 5.18.3linux
Linux/Linux < 5.16
Linux/Linux 5.16
Linux/Linux 5.17.14 - 5.17.*
Linux/Linux 5.18.3 - 5.18.*
Linux/Linux 5.19
Linux/Linux 6450ef55905688602175fae4ed1bfbfef6a14dde - 9f342904216f378e88008bb0ce1ae200a4b99fe8
Linux/Linux 6450ef55905688602175fae4ed1bfbfef6a14dde - a59b9958416096dd21dc4f62b0c5be525d459ca8
Linux/Linux 6450ef55905688602175fae4ed1bfbfef6a14dde - dbc35268e14d5d89c7a9db72009ad4dcd9ede646
... and 1 more
Published Feb 26, 2025
Tracked Since Feb 18, 2026