7.1

CVE-2021-4460

drm/amdkfd: Fix UBSAN shift-out-of-bounds warning

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

drm/amdkfd: Fix UBSAN shift-out-of-bounds warning

If get_num_sdma_queues or get_num_xgmi_sdma_queues is 0, we end up
doing a shift operation where the number of bits shifted equals
number of bits in the operand. This behaviour is undefined.

Set num_sdma_queues or num_xgmi_sdma_queues to ULLONG_MAX, if the
count is >= number of bits in the operand.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1472
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version < 5.4.118
LinuxLinux Kernel Version >= 5.5 < 5.10.36
LinuxLinux Kernel Version >= 5.11 < 5.11.20
LinuxLinux Kernel Version >= 5.12 < 5.12.3
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.046
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.1 1.8 5.2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE-125 Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

https://git.kernel.org/stable/c/0c0356ef2498c1a250fe3846f30293f828737309
Patch
https://git.kernel.org/stable/c/1874b0ef1426b873de94c61861e38f29a8df714c
Patch
https://git.kernel.org/stable/c/3fdc5182700910a685d23df57d65166e8556a266
Patch
https://git.kernel.org/stable/c/50e2fc36e72d4ad672032ebf646cecb48656efe0
Patch
https://git.kernel.org/stable/c/9069b1b542de8f3bbffef868aff41521b21485cf
Patch