5.5

CVE-2022-49982

media: pvrusb2: fix memory leak in pvr_probe

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

media: pvrusb2: fix memory leak in pvr_probe

The error handling code in pvr2_hdw_create forgets to unregister the
v4l2 device. When pvr2_hdw_create returns back to pvr2_context_create,
it calls pvr2_context_destroy to destroy context, but mp->hdw is NULL,
which leads to that pvr2_hdw_destroy directly returns.

Fix this by adding v4l2_device_unregister to decrease the refcount of
usb interface.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 4.9.327
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.292
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.257
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.212
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.141
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.65
Linux ≫ Linux Kernel Version >= 5.16 < 5.19.7
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% 0.11
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/2fe46195d2f0d5d09ea65433aefe47a4d0d0ff4d
Patch
https://git.kernel.org/stable/c/ba7dd8a9686a61a34b3a7b922ce721378d4740d0
Patch
https://git.kernel.org/stable/c/491762b3250fb06a0c97b5198656ea48359eaeed
Patch
https://git.kernel.org/stable/c/466b67c0543b2ae67814d053f6e29b39be6b33bb
Patch
https://git.kernel.org/stable/c/bacb37bdc2a21c8f7fdc83dcc0dea2f4ca1341fb
Patch
https://git.kernel.org/stable/c/f2f6e67522916f53ad8ccd4dbe68dcf76e9776e5
Patch
https://git.kernel.org/stable/c/c02d2a91a85c4c4d05826cd1ea74a9b8d42e4280
Patch
https://git.kernel.org/stable/c/945a9a8e448b65bec055d37eba58f711b39f66f0
Patch