CVE-2021-46924
- Source
- https://cve.org/CVERecord?id=CVE-2021-46924
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-46924.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-46924
- Downstream
- Related
- Published
- 2024-02-27T10:15:07.150Z
- Modified
- 2026-03-13T05:19:21.174967Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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>] __kmallocnodetrackcaller+0x1ed/0x450 [<00000000c93382b3>] kmallocreserve+0x37/0xd0 [<000000005fea522c>] __allocskb+0x124/0x380 [<0000000019f29f9a>] st21nfcahcii2cprobe+0x170/0x8f2
Fix it by freeing 'pending_skb' in error and remove.
- References
-
- https://git.kernel.org/stable/c/1b9dadba502234eea7244879b8d5d126bfaf9f0c
- https://git.kernel.org/stable/c/1cd4063dbc91cf7965d73a6a3855e2028cd4613b
- https://git.kernel.org/stable/c/238920381b8925d070d32d73cd9ce52ab29896fe
- https://git.kernel.org/stable/c/38c3e320e7ff46f2dc67bc5045333e63d9f8918d
- https://git.kernel.org/stable/c/a1e0080a35a16ce3808f7040fe0c3a8fdb052349
- https://git.kernel.org/stable/c/e553265ea56482da5700f56319fda9ff53e7dcb4
Affected packages
Git /
Database specific
source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-46924.json"
unresolved_ranges
[
{
"events": [
{
"introduced": "3.16.0"
},
{
"fixed": "4.14.261"
}
]
},
{
"events": [
{
"introduced": "4.15.0"
},
{
"fixed": "4.19.224"
}
]
},
{
"events": [
{
"introduced": "4.20.0"
},
{
"fixed": "5.4.170"
}
]
},
{
"events": [
{
"introduced": "5.5.0"
},
{
"fixed": "5.10.90"
}
]
},
{
"events": [
{
"introduced": "5.11.0"
},
{
"fixed": "5.15.13"
}
]
}
]