CVE-2022-49956

staging: rtl8712: fix use after free bugs

HIGH

7.8

CVSS Score

Published: June 18, 2025 at 11:00 AM UTC

Updated: August 5, 2026 at 09:24 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

HIGH7.8

Exploit prediction

EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8712: fix use after free bugs _Read/Write_MACREG callbacks are NULL so the read/write_macreg_hdl() functions don't do anything except free the "pcmd" pointer. It results in a use after free. Delete them.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

2.6.37 ≤ v < 4.14.2932.6.37 ≤ v < 4.19.2582.6.37 ≤ v < 4.9.3282.6.37 ≤ v < 5.10.1422.6.37 ≤ v < 5.15.662.6.37 ≤ v < 5.19.82.6.37 ≤ v < 5.4.2132.6.37 ≤ v < 6.04.10 ≤ v < 4.14.2934.15 ≤ v < 4.19.2584.20 ≤ v < 5.4.2135.11 ≤ v < 5.15.665.16 ≤ v < 5.19.85.5 ≤ v < 5.10.1422865d42c78a9121caad52cb02d1fbb7f5cdbc4ef6.0 rc1 6.0 rc2 6.0 rc3

Vendor states this is fixed in 19e3f69d19801940abc2ac37c169882769ed9770 (fixed)

Vendor states this is fixed in 376e15487fec837301d888068a3fcc82efb6171a (fixed)

Vendor states this is fixed in 7dce6b0ee7d78667d6c831ced957a08769973063 (fixed)

Vendor states this is fixed in 9fd6170c5e2d0ccd027abe26f6f5ffc528e1bb27 (fixed)

Vendor states this is fixed in b1727def850904e4b8ba384043775672841663a1 (fixed)

Vendor states this is fixed in d0aac7146e96bf39e79c65087d21dfa02ef8db38 (fixed)

Vendor states this is fixed in dc02aaf950015850e7589696521c7fca767cea77 (fixed)

Vendor states this is fixed in e230a4455ac3e9b112f0367d1b8e255e141afae0 (fixed)

Vendor states this is fixed in 2.6.37 (unaffected)

Vendor states this is fixed in 4.14.293 (unaffected)

Vendor states this is fixed in 4.19.258 (unaffected)

Vendor states this is fixed in 4.9.328 (unaffected)