CVE-2022-50529

test_firmware: fix memory leak in test_firmware_init()

MEDIUM

5.5

CVSS Score

Published: October 7, 2025 at 03:19 PM UTC

Updated: June 17, 2026 at 05:23 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: test_firmware: fix memory leak in test_firmware_init() When misc_register() failed in test_firmware_init(), the memory pointed by test_fw_config->name is not released. The memory leak information is as follows: unreferenced object 0xffff88810a34cb00 (size 32): comm "insmod", pid 7952, jiffies 4294948236 (age 49.060s) hex dump (first 32 bytes): 74 65 73 74 2d 66 69 72 6d 77 61 72 65 2e 62 69 test-firmware.bi 6e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 n............... backtrace: [<ffffffff81b21fcb>] __kmalloc_node_track_caller+0x4b/0xc0 [<ffffffff81affb96>] kstrndup+0x46/0xc0 [<ffffffffa0403a49>] __test_firmware_config_init+0x29/0x380 [test_firmware] [<ffffffffa040f068>] 0xffffffffa040f068 [<ffffffff81002c41>] do_one_initcall+0x141/0x780 [<ffffffff816a72c3>] do_init_module+0x1c3/0x630 [<ffffffff816adb9e>] load_module+0x623e/0x76a0 [<ffffffff816af471>] __do_sys_finit_module+0x181/0x240 [<ffffffff89978f99>] do_syscall_64+0x39/0xb0 [<ffffffff89a0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

4.14 ≤ v < 4.14.3034.14 ≤ v < 4.19.2704.14 ≤ v < 5.10.1634.14 ≤ v < 5.15.864.14 ≤ v < 5.4.2294.14 ≤ v < 6.0.164.14 ≤ v < 6.1.24.14 ≤ v < 6.24.15 ≤ v < 4.19.2704.20 ≤ v < 5.4.2295.11 ≤ v < 5.15.865.16 ≤ v < 6.0.165.5 ≤ v < 5.10.1636.1 ≤ v < 6.1.24.14c92316bf8e94830a0225f2e904cbdbd173768419

Vendor states this is fixed in 04dd47a2e169f2d4489636afa07ff0469aab49ab (fixed)

Vendor states this is fixed in 0b5a89e8bce1ea43687742b4de8e216189ff94ac (fixed)

Vendor states this is fixed in 357379d504c0c8b0834e206ad8c49e4b3c98ed4d (fixed)

Vendor states this is fixed in 628de998a3abfffb3f9677d2fb39a1d5dcb32fdb (fixed)

Vendor states this is fixed in 6dd5fbd243f19f087dc79481acb7d69fb57fea2c (fixed)

Vendor states this is fixed in 7610615e8cdb3f6f5bbd9d8e7a5d8a63e3cabf2e (fixed)

Vendor states this is fixed in 8d8c1d6a430f0aadb80036e2b1bc0a05f9fad247 (fixed)

Vendor states this is fixed in ed5cbafaf7ce8b86f19998c00eb020c8d49b017f (fixed)

Vendor states this is fixed in 4.14 (unaffected)

Vendor states this is fixed in 4.14.303 (unaffected)

Vendor states this is fixed in 4.19.270 (unaffected)

Vendor states this is fixed in 5.10.163 (unaffected)