CVE-2021-46924
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)
NFC: st21nfca: Fix memory leak in device probe and remove
In the Linux kernel, the following vulnerability has been resolved: NFC: st21nfca: Fix memory leak in device probe and remove 'phy->pending_skb' is alloced when device probe, but forgot to free in the error handling path and remove path, this cause memory leak as follows: unreferenced object 0xffff88800bc06800 (size 512): comm "8", pid 11775, jiffies 4295159829 (age 9.032s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000d66c09ce>] __kmalloc_node_track_caller+0x1ed/0x450 [<00000000c93382b3>] kmalloc_reserve+0x37/0xd0 [<000000005fea522c>] __alloc_skb+0x124/0x380 [<0000000019f29f9a>] st21nfca_hci_i2c_probe+0x170/0x8f2 Fix it by freeing 'pending_skb' in error and remove.
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) |
|---|---|---|---|---|---|
| 68957303f44a501af5cf37913208a2acaa6bcdf1 | affected | git | 38c3e320e7ff46f2dc67bc5045333e63d9f8918d | Unavailable | None listed |
| 68957303f44a501af5cf37913208a2acaa6bcdf1 | affected | git | a1e0080a35a16ce3808f7040fe0c3a8fdb052349 | Unavailable | None listed |
| 68957303f44a501af5cf37913208a2acaa6bcdf1 | affected | git | 1cd4063dbc91cf7965d73a6a3855e2028cd4613b | Unavailable | None listed |
| 68957303f44a501af5cf37913208a2acaa6bcdf1 | affected | git | e553265ea56482da5700f56319fda9ff53e7dcb4 | Unavailable | None listed |
| 68957303f44a501af5cf37913208a2acaa6bcdf1 | affected | git | 238920381b8925d070d32d73cd9ce52ab29896fe | Unavailable | None listed |
| 68957303f44a501af5cf37913208a2acaa6bcdf1 | affected | git | 1b9dadba502234eea7244879b8d5d126bfaf9f0c | 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) |
|---|---|---|---|---|---|
| 3.16 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.16 | Unavailable | None listed |
| 4.14.261 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.224 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.170 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.90 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.13 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.16 | unaffected | original_commit_for_fix | Unavailable | * | None listed |