5.5

CVE-2022-49061

net: ethernet: stmmac: fix altr_tse_pcs function when using a fixed-link

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

net: ethernet: stmmac: fix altr_tse_pcs function when using a fixed-link

When using a fixed-link, the altr_tse_pcs driver crashes
due to null-pointer dereference as no phy_device is provided to
tse_pcs_fix_mac_speed function. Fix this by adding a check for
phy_dev before calling the tse_pcs_fix_mac_speed() function.

Also clean up the tse_pcs_fix_mac_speed function a bit. There is
no need to check for splitter_base and sgmii_adapter_base
because the driver will fail if these 2 variables are not
derived from the device tree.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.8 < 5.4.190
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.112
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.35
Linux ≫ Linux Kernel Version >= 5.16 < 5.17.4
Linux ≫ Linux Kernel Version5.18 Updaterc1
Linux ≫ Linux Kernel Version5.18 Updaterc2
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.157
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
134c704f-9b21-4f2e-91b3-4a467353bcc0 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/08d5e3e954537931c8da7428034808d202e98299
Patch
https://git.kernel.org/stable/c/62a48383ebe2e159fd68425dd3e16d4c6bd6599a
Patch
https://git.kernel.org/stable/c/6c020f05253df04c3480b586fe188a3582740049
Patch
https://git.kernel.org/stable/c/7e59fdf9547c4f948d1d917ec7ffa5fb5ac53bdb
Patch
https://git.kernel.org/stable/c/a6aaa00324240967272b451bfa772547bd576ee6
Patch