5.5

CVE-2022-48772

media: lgdt3306a: Add a check against null-pointer-def

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

media: lgdt3306a: Add a check against null-pointer-def

The driver should check whether the client provides the platform_data.

The following log reveals it:

[   29.610324] BUG: KASAN: null-ptr-deref in kmemdup+0x30/0x40
[   29.610730] Read of size 40 at addr 0000000000000000 by task bash/414
[   29.612820] Call Trace:
[   29.613030]  <TASK>
[   29.613201]  dump_stack_lvl+0x56/0x6f
[   29.613496]  ? kmemdup+0x30/0x40
[   29.613754]  print_report.cold+0x494/0x6b7
[   29.614082]  ? kmemdup+0x30/0x40
[   29.614340]  kasan_report+0x8a/0x190
[   29.614628]  ? kmemdup+0x30/0x40
[   29.614888]  kasan_check_range+0x14d/0x1d0
[   29.615213]  memcpy+0x20/0x60
[   29.615454]  kmemdup+0x30/0x40
[   29.615700]  lgdt3306a_probe+0x52/0x310
[   29.616339]  i2c_device_probe+0x951/0xa90
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version < 5.4.278
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.219
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.161
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.94
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.34
Linux ≫ Linux Kernel Version >= 6.7 < 6.9.5
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.24% 0.153
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-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/526238d32c3acc3d597fd8c9a34652bfe9086cea
Patch
https://git.kernel.org/stable/c/7d12e918f2994c883f41f22552a61b9310fa1e87
Patch
https://git.kernel.org/stable/c/8915dcd29a82096acacf54364a8425363782aea0
Patch
https://git.kernel.org/stable/c/8e1e00718d0d9dd83337300572561e30b9c0d115
Patch
https://git.kernel.org/stable/c/b479fd59a1f4a342b69fce34f222d93bf791dca4
Patch
https://git.kernel.org/stable/c/c1115ddbda9c930fba0fdd062e7a8873ebaf898d
Patch
https://git.kernel.org/stable/c/d082757b8359201c3864323cea4b91ea30a1e676
Patch