CVE-2024-53233

MEDIUM

Linux Kernel 5.17-6.1.119, 6.2-6.6.63, 6.7-6.11.10, 6.12.0-6.12.1 - NULL Pointer Dereference in utf8_load() Error Path

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: unicode: Fix utf8_load() error path utf8_load() requests the symbol "utf8_data_table" and then checks if the requested UTF-8 version is supported. If it's unsupported, it tries to put the data table using symbol_put(). If an unsupported version is requested, symbol_put() fails like this: kernel BUG at kernel/module/main.c:786! RIP: 0010:__symbol_put+0x93/0xb0 Call Trace: <TASK> ? __die_body.cold+0x19/0x27 ? die+0x2e/0x50 ? do_trap+0xca/0x110 ? do_error_trap+0x65/0x80 ? __symbol_put+0x93/0xb0 ? exc_invalid_op+0x51/0x70 ? __symbol_put+0x93/0xb0 ? asm_exc_invalid_op+0x1a/0x20 ? __pfx_cmp_name+0x10/0x10 ? __symbol_put+0x93/0xb0 ? __symbol_put+0x62/0xb0 utf8_load+0xf8/0x150 That happens because symbol_put() expects the unique string that identify the symbol, instead of a pointer to the loaded symbol. Fix that by using such string.

Scores

CVSS v3 5.5
EPSS 0.0022
EPSS Percentile 12.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-476
Status published
Products (17)
linux/Kernel 5.17.0 - 6.1.120linux
linux/Kernel 6.12.0 - 6.12.2linux
linux/Kernel 6.2.0 - 6.6.64linux
linux/Kernel 6.7.0 - 6.11.11linux
Linux/Linux < 5.17
Linux/Linux 2b3d047870120bcd46d7cc257d19ff49328fd585 - 156bb2c569cd869583c593d27a5bd69e7b2a4264
Linux/Linux 2b3d047870120bcd46d7cc257d19ff49328fd585 - 4387cef540f36c2c9297460758cc2438305a24a0
Linux/Linux 2b3d047870120bcd46d7cc257d19ff49328fd585 - 6504dd27123966dc455494cb55217c04ca479121
Linux/Linux 2b3d047870120bcd46d7cc257d19ff49328fd585 - 89933f8ab3b4cad5ac14ea56a39947d1ffe7d0e3
Linux/Linux 2b3d047870120bcd46d7cc257d19ff49328fd585 - c4b6c1781f6cc4e2283120ac8d873864b8056f21
... and 7 more
Published Dec 27, 2024
Tracked Since Feb 18, 2026