7.8

CVE-2022-49478

media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init

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

media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init

Syzbot reported that -1 is used as array index. The problem was in
missing validation check.

hdw->unit_number is initialized with -1 and then if init table walk fails
this value remains unchanged. Since code blindly uses this member for
array indexing adding sanity check is the easiest fix for that.

hdw->workpoll initialization moved upper to prevent warning in
__flush_work.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.18 < 4.9.318
Linux ≫ Linux Kernel Version >= 4.10 < 4.14.283
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.247
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.198
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.121
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.46
Linux ≫ Linux Kernel Version >= 5.16 < 5.17.14
Linux ≫ Linux Kernel Version >= 5.18 < 5.18.3
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.27% 0.192
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-129 Improper Validation of Array Index

The product uses untrusted input when calculating or using an array index, but the product does not validate or incorrectly validates the index to ensure the index references a valid position within the array.

https://git.kernel.org/stable/c/1310fc3538dcc375a2f46ef0a438512c2ca32827
Patch
https://git.kernel.org/stable/c/24e807541e4a9263ed928e6ae3498de3ad43bd1e
Patch
https://git.kernel.org/stable/c/2e004fe914b243db41fa96f9e583385f360ea58e
Patch
https://git.kernel.org/stable/c/3309c2c574e13b21b44729f5bdbf21f60189b79a
Patch
https://git.kernel.org/stable/c/4351bfe36aba9fa7dc9d68d498d25d41a0f45e67
Patch
https://git.kernel.org/stable/c/471bec68457aaf981add77b4f590d65dd7da1059
Patch
https://git.kernel.org/stable/c/a3304766d9384886e6d3092c776273526947a2e9
Patch
https://git.kernel.org/stable/c/a3660e06675bccec4bf149c7229ea1d491ba10d7
Patch
https://git.kernel.org/stable/c/f99a8b1ec0eddc2931aeaa4f490277a15b39f511
Patch