CVE-2022-49339
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2022
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
net: ipv6: unexport __init-annotated seg6_hmac_init()
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| bf355b8d2c30a289232042cacc1cfaea4923936c | affected | git | 64aef8efe96c1616142c4476a05731306fc4494e | Unavailable | None listed |
| bf355b8d2c30a289232042cacc1cfaea4923936c | affected | git | ab8b2c2de273ec1d698a18e399896a6febb5cda0 | Unavailable | None listed |
| bf355b8d2c30a289232042cacc1cfaea4923936c | affected | git | 317260b3eb6384a05a8af212308fa50f3b2e8290 | Unavailable | None listed |
| bf355b8d2c30a289232042cacc1cfaea4923936c | affected | git | 5d9c1b081ad28c852a97e10dd75412546497694a | Unavailable | None listed |
| bf355b8d2c30a289232042cacc1cfaea4923936c | affected | git | 1084716f76c8045eadf92a9d9a62641f3c8d8c90 | Unavailable | None listed |
| bf355b8d2c30a289232042cacc1cfaea4923936c | affected | git | 3e6de5037148c5a93a436b1e8d2edad3dac11755 | Unavailable | None listed |
| bf355b8d2c30a289232042cacc1cfaea4923936c | affected | git | 9ba4416b831eeb4d185e88e73488d1d21288e63a | Unavailable | None listed |
| bf355b8d2c30a289232042cacc1cfaea4923936c | affected | git | 5801f064e35181c71857a80ff18af4dbec3c5f5c | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.10 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.10 | Unavailable | None listed |
| 4.14.283 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.247 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.198 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.122 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.47 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.17.15 | unaffected | semver | Unavailable | 5.17.* | None listed |
| 5.18.4 | unaffected | semver | Unavailable | 5.18.* | None listed |
| 5.19 | unaffected | original_commit_for_fix | Unavailable | * | None listed |