5.5

CVE-2022-48924

thermal: int340x: fix memory leak in int3400_notify()

In the Linux kernel, the following vulnerability has been resolved:

thermal: int340x: fix memory leak in int3400_notify()

It is easy to hit the below memory leaks in my TigerLake platform:

unreferenced object 0xffff927c8b91dbc0 (size 32):
  comm "kworker/0:2", pid 112, jiffies 4294893323 (age 83.604s)
  hex dump (first 32 bytes):
    4e 41 4d 45 3d 49 4e 54 33 34 30 30 20 54 68 65  NAME=INT3400 The
    72 6d 61 6c 00 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b a5  rmal.kkkkkkkkkk.
  backtrace:
    [<ffffffff9c502c3e>] __kmalloc_track_caller+0x2fe/0x4a0
    [<ffffffff9c7b7c15>] kvasprintf+0x65/0xd0
    [<ffffffff9c7b7d6e>] kasprintf+0x4e/0x70
    [<ffffffffc04cb662>] int3400_notify+0x82/0x120 [int3400_thermal]
    [<ffffffff9c8b7358>] acpi_ev_notify_dispatch+0x54/0x71
    [<ffffffff9c88f1a7>] acpi_os_execute_deferred+0x17/0x30
    [<ffffffff9c2c2c0a>] process_one_work+0x21a/0x3f0
    [<ffffffff9c2c2e2a>] worker_thread+0x4a/0x3b0
    [<ffffffff9c2cb4dd>] kthread+0xfd/0x130
    [<ffffffff9c201c1f>] ret_from_fork+0x1f/0x30

Fix it by calling kfree() accordingly.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.14 < 4.14.274
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.237
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.188
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.103
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.26
Linux ≫ Linux Kernel Version >= 5.16 < 5.16.12
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.111
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, making the memory unavailable for reallocation and reuse.

https://git.kernel.org/stable/c/2e798814e01827871938ff172d2b2ccf1e74b355
Patch
https://git.kernel.org/stable/c/33c73a4d7e7b19313a6b417152f5365016926418
Patch
https://git.kernel.org/stable/c/3abea10e6a8f0e7804ed4c124bea2d15aca977c8
Patch
https://git.kernel.org/stable/c/ba9efbbf6745750d34c1e87c9539ce9db645ca0a
Patch
https://git.kernel.org/stable/c/c3fa6d1937a8d0828131a04ae2cd2c30d0668693
Patch
https://git.kernel.org/stable/c/e098933866f9e1dd3ef4eebbe2e3d504f970f599
Patch
https://git.kernel.org/stable/c/f0ddc5184b0127038d05008e2a69f89d1e13f980
Patch