CVE-2022-49339
net: ipv6: unexport __init-annotated seg6_hmac_init()
Summary
Descriptions
In the Linux kernel, the following vulnerability has been resolved: net: ipv6: unexport __init-annotated seg6_hmac_init() EXPORT_SYMBOL and __init is a bad combination because the .init.text
section is freed up after the initialization. Hence, modules cannot
use symbols annotated __init. The access to a freed symbol may end up
with kernel panic. modpost used to detect it, but it has been broken for a decade. Recently, I fixed modpost so it started to warn it again, then this
showed up in linux-next builds. There are two ways to fix it: - Remove __init - Remove EXPORT_SYMBOL I chose the latter for this case because the caller (net/ipv6/seg6.c)
and the callee (net/ipv6/seg6_hmac.c) belong to the same module.
It seems an internal function call in ipv6.ko.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2025-02-26 CVE Reserved
- 2025-02-26 CVE Published
- 2025-02-26 CVE Updated
- ---------- EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
CAPEC
Threat Intelligence Resources (0)
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References (9)
| URL | Tag | Source |
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| https://git.kernel.org/stable/c/bf355b8d2c30a289232042cacc1cfaea4923936c | Vuln. Introduced |
| URL | Date | SRC |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.10 < 4.14.283 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.10 < 4.14.283" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.10 < 4.19.247 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.10 < 4.19.247" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.10 < 5.4.198 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.10 < 5.4.198" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.10 < 5.10.122 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.10 < 5.10.122" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.10 < 5.15.47 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.10 < 5.15.47" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.10 < 5.17.15 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.10 < 5.17.15" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.10 < 5.18.4 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.10 < 5.18.4" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 4.10 < 5.19 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.10 < 5.19" | en |
Affected
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