CVE-2022-49956
published 2025-06-18CVE-2022-49956: 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…
PriorityP338high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.21%
11.8th percentile
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
22 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.0.2-1 (bookworm) | linux 6.0.2-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef < 7dce6b0ee7d78667d6c831ced957a08769973063 | 7dce6b0ee7d78667d6c831ced957a08769973063 |
| linux | linux | >= 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef < 376e15487fec837301d888068a3fcc82efb6171a | 376e15487fec837301d888068a3fcc82efb6171a |
| linux | linux | >= 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef < 9fd6170c5e2d0ccd027abe26f6f5ffc528e1bb27 | 9fd6170c5e2d0ccd027abe26f6f5ffc528e1bb27 |
| linux | linux | >= 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef < d0aac7146e96bf39e79c65087d21dfa02ef8db38 | d0aac7146e96bf39e79c65087d21dfa02ef8db38 |
| linux | linux | >= 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef < 19e3f69d19801940abc2ac37c169882769ed9770 | 19e3f69d19801940abc2ac37c169882769ed9770 |
| linux | linux | >= 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef < dc02aaf950015850e7589696521c7fca767cea77 | dc02aaf950015850e7589696521c7fca767cea77 |
| linux | linux | >= 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef < b1727def850904e4b8ba384043775672841663a1 | b1727def850904e4b8ba384043775672841663a1 |
| linux | linux | >= 2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef < e230a4455ac3e9b112f0367d1b8e255e141afae0 | e230a4455ac3e9b112f0367d1b8e255e141afae0 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.148-1 | 5.10.148-1 |
| linux | linux_kernel | >= 0 < 6.0.2-1 | 6.0.2-1 |
| linux | linux_kernel | >= 0 < 6.0.2-1 | 6.0.2-1 |
| linux | linux_kernel | >= 0 < 6.0.2-1 | 6.0.2-1 |
| linux | linux_kernel | >= 2.6.37 < 4.9.328 | 4.9.328 |
| linux | linux_kernel | >= 4.10 < 4.14.293 | 4.14.293 |
| linux | linux_kernel | >= 4.15 < 4.19.258 | 4.19.258 |
| linux | linux_kernel | >= 4.20 < 5.4.213 | 5.4.213 |
| linux | linux_kernel | >= 5.11 < 5.15.66 | 5.15.66 |
| linux | linux_kernel | >= 5.16 < 5.19.8 | 5.19.8 |
| linux | linux_kernel | >= 5.5 < 5.10.142 | 5.10.142 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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OSV
CVE-2022-49956: In the Linux kernel, the following vulnerability has been resolved: staging: rtl8712: fix use after free bugs _Read/Write_MACREG callbacks are NULL so
osv·2025-06-18·CVSS 7.8
CVE-2022-49956 [HIGH] CVE-2022-49956: In the Linux kernel, the following vulnerability has been resolved: staging: rtl8712: fix use after free bugs _Read/Write_MACREG callbacks are NULL so
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.
GHSA
GHSA-p2p9-p33f-wg2c: In the Linux kernel, the following vulnerability has been resolved:
staging: rtl8712: fix use after free bugs
_Read/Write_MACREG callbacks are NULL
ghsa_unreviewed·2025-06-18
CVE-2022-49956 [HIGH] CWE-416 GHSA-p2p9-p33f-wg2c: In the Linux kernel, the following vulnerability has been resolved:
staging: rtl8712: fix use after free bugs
_Read/Write_MACREG callbacks are NULL
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.
Red Hat
kernel: staging: rtl8712: fix use after free bugs
vendor_redhat·2025-06-18·CVSS 7.8
CVE-2022-49956 [HIGH] CWE-416 kernel: staging: rtl8712: fix use after free bugs
kernel: staging: rtl8712: fix use after free bugs
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.
Package: kernel (Red Hat Enterprise Linux 10) - Not affected
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Fix deferred
Package: kernel-rt (Red Hat Enterprise Linux 7) - Fix deferred
Package: kernel (Red Hat Enterprise Linux 8) - Not affected
Package: kernel-rt (Red Hat Enterprise Linux 8) - Not affected
Package: kernel (Red Hat Enterprise Linux 9) - Not affected
Package: kernel-rt (Red Hat En
Debian
CVE-2022-49956: linux - In the Linux kernel, the following vulnerability has been resolved: staging: rt...
vendor_debian·2022·CVSS 7.8
CVE-2022-49956 [HIGH] CVE-2022-49956: linux - In the Linux kernel, the following vulnerability has been resolved: staging: rt...
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.
Scope: local
bookworm: resolved (fixed in 6.0.2-1)
bullseye: resolved (fixed in 5.10.148-1)
forky: resolved (fixed in 6.0.2-1)
sid: resolved (fixed in 6.0.2-1)
trixie: resolved (fixed in 6.0.2-1)
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/19e3f69d19801940abc2ac37c169882769ed9770https://git.kernel.org/stable/c/376e15487fec837301d888068a3fcc82efb6171ahttps://git.kernel.org/stable/c/7dce6b0ee7d78667d6c831ced957a08769973063https://git.kernel.org/stable/c/9fd6170c5e2d0ccd027abe26f6f5ffc528e1bb27https://git.kernel.org/stable/c/b1727def850904e4b8ba384043775672841663a1https://git.kernel.org/stable/c/d0aac7146e96bf39e79c65087d21dfa02ef8db38https://git.kernel.org/stable/c/dc02aaf950015850e7589696521c7fca767cea77https://git.kernel.org/stable/c/e230a4455ac3e9b112f0367d1b8e255e141afae0
2025-06-18
Published