CVE-2022-49315
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)
drivers: staging: rtl8192e: Fix deadlock in rtllib_beacons_stop()
In the Linux kernel, the following vulnerability has been resolved: drivers: staging: rtl8192e: Fix deadlock in rtllib_beacons_stop() There is a deadlock in rtllib_beacons_stop(), which is shown below: (Thread 1) | (Thread 2) | rtllib_send_beacon() rtllib_beacons_stop() | mod_timer() spin_lock_irqsave() //(1) | (wait a time) ... | rtllib_send_beacon_cb() del_timer_sync() | spin_lock_irqsave() //(2) (wait timer to stop) | ... We hold ieee->beacon_lock in position (1) of thread 1 and use del_timer_sync() to wait timer to stop, but timer handler also need ieee->beacon_lock in position (2) of thread 2. As a result, rtllib_beacons_stop() will block forever. This patch extracts del_timer_sync() from the protection of spin_lock_irqsave(), which could let timer handler to obtain the needed lock.
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) |
|---|---|---|---|---|---|
| 94a799425eee8225a1e3fbe5f473d2ef04002577 | affected | git | 4681129fda9e8555392eaaadb239ec6a6e2b3e12 | Unavailable | None listed |
| 94a799425eee8225a1e3fbe5f473d2ef04002577 | affected | git | 381045dc64d23a2229c47c5524c06bfc33d34446 | Unavailable | None listed |
| 94a799425eee8225a1e3fbe5f473d2ef04002577 | affected | git | 08bacf871c019163ccd1389d0bc957a43324967a | Unavailable | None listed |
| 94a799425eee8225a1e3fbe5f473d2ef04002577 | affected | git | 64b05fa212c7e4d057676e8b7e7120c6eb2f615b | Unavailable | None listed |
| 94a799425eee8225a1e3fbe5f473d2ef04002577 | affected | git | 0f69d7d5e918aa43423d86bd17ddb11b1b5e8ada | Unavailable | None listed |
| 94a799425eee8225a1e3fbe5f473d2ef04002577 | affected | git | fef451f0fbbe85dbd2962b18379d02e2965610db | Unavailable | None listed |
| 94a799425eee8225a1e3fbe5f473d2ef04002577 | affected | git | 46c861009bf437a18417df24cea0d181741b7d72 | Unavailable | None listed |
| 94a799425eee8225a1e3fbe5f473d2ef04002577 | affected | git | ffd4c4d5293e4985092ea45ba21cad9326e2e434 | Unavailable | None listed |
| 94a799425eee8225a1e3fbe5f473d2ef04002577 | affected | git | 9b6bdbd9337de3917945847bde262a34a87a6303 | 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) |
|---|---|---|---|---|---|
| 3.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.2 | Unavailable | None listed |
| 4.9.318 | unaffected | semver | Unavailable | 4.9.* | 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 |