TLDRVuln - Cybersecurity Vulnerabilities Made Simple

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