5.5

CVE-2022-50529

test_firmware: fix memory leak in test_firmware_init()

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
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.14 < 4.14.303
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.270
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.229
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.163
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.86
Linux ≫ Linux Kernel Version >= 5.16 < 6.0.16
Linux ≫ Linux Kernel Version >= 6.1 < 6.1.2
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.02% 0.042
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.