CVEvulnerability
CVE-2024-53233
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2024-12-27
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-476
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.
Affected configurations
• linux linux kernel (>= 5.17 < 6.1.120)
• linux linux kernel (>= 6.2 < 6.6.64)
• linux linux kernel (>= 6.7 < 6.11.11)
• linux linux kernel (>= 6.12 < 6.12.2)
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness
References
- https://git.kernel.org/stable/c/156bb2c569cd869583c593d27a5bd69e7b2a4264 Patch
- https://git.kernel.org/stable/c/4387cef540f36c2c9297460758cc2438305a24a0 Patch
- https://git.kernel.org/stable/c/6504dd27123966dc455494cb55217c04ca479121 Patch
- https://git.kernel.org/stable/c/89933f8ab3b4cad5ac14ea56a39947d1ffe7d0e3 Patch
- https://git.kernel.org/stable/c/c4b6c1781f6cc4e2283120ac8d873864b8056f21 Patch
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html lists.debian.org