CVE-2021-47416
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2021
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
phy: mdio: fix memory leak
In the Linux kernel, the following vulnerability has been resolved: phy: mdio: fix memory leak Syzbot reported memory leak in MDIO bus interface, the problem was in wrong state logic. MDIOBUS_ALLOCATED indicates 2 states: 1. Bus is only allocated 2. Bus allocated and __mdiobus_register() fails, but device_register() was called In case of device_register() has been called we should call put_device() to correctly free the memory allocated for this device, but mdiobus_free() calls just kfree(dev) in case of MDIOBUS_ALLOCATED state To avoid this behaviour we need to set bus->state to MDIOBUS_UNREGISTERED _before_ calling device_register(), because put_device() should be called even in case of device_register() failure.
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) |
|---|---|---|---|---|---|
| 46abc02175b3c246dd5141d878f565a8725060c9 | affected | git | 25e9f88c7e3cc35f5e3d3db199660d28a15df639 | Unavailable | None listed |
| 46abc02175b3c246dd5141d878f565a8725060c9 | affected | git | 2250392d930bd0d989f24d355d6355b0150256e7 | Unavailable | None listed |
| 46abc02175b3c246dd5141d878f565a8725060c9 | affected | git | f4f502a04ee1e543825af78f47eb7785015cd9f6 | Unavailable | None listed |
| 46abc02175b3c246dd5141d878f565a8725060c9 | affected | git | 2397b9e118721292429fea8807a698e71b94795f | Unavailable | None listed |
| 46abc02175b3c246dd5141d878f565a8725060c9 | affected | git | 414bb4ead1362ef2c8592db723c017258f213988 | Unavailable | None listed |
| 46abc02175b3c246dd5141d878f565a8725060c9 | affected | git | 0d2dd40a7be61b89a7c99dae8ee96389d27b413a | Unavailable | None listed |
| 46abc02175b3c246dd5141d878f565a8725060c9 | affected | git | 064c2616234a7394867c924b5c1303974f3a4f4d | Unavailable | None listed |
| 46abc02175b3c246dd5141d878f565a8725060c9 | affected | git | ca6e11c337daf7925ff8a2aac8e84490a8691905 | 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) |
|---|---|---|---|---|---|
| 2.6.28 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.28 | Unavailable | None listed |
| 4.4.289 | unaffected | semver | Unavailable | 4.4.* | None listed |
| 4.9.287 | unaffected | semver | Unavailable | 4.9.* | None listed |
| 4.14.251 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.211 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.153 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.73 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.14.12 | unaffected | semver | Unavailable | 5.14.* | None listed |
| 5.15 | unaffected | original_commit_for_fix | Unavailable | * | None listed |