CVE-2022-50542
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)
media: si470x: Fix use-after-free in si470x_int_in_callback()
In the Linux kernel, the following vulnerability has been resolved: media: si470x: Fix use-after-free in si470x_int_in_callback() syzbot reported use-after-free in si470x_int_in_callback() [1]. This indicates that urb->context, which contains struct si470x_device object, is freed when si470x_int_in_callback() is called. The cause of this issue is that si470x_int_in_callback() is called for freed urb. si470x_usb_driver_probe() calls si470x_start_usb(), which then calls usb_submit_urb() and si470x_start(). If si470x_start_usb() fails, si470x_usb_driver_probe() doesn't kill urb, but it just frees struct si470x_device object, as depicted below: si470x_usb_driver_probe() ... si470x_start_usb() ... usb_submit_urb() retval = si470x_start() return retval if (retval < 0) free struct si470x_device object, but don't kill urb This patch fixes this issue by killing urb when si470x_start_usb() fails and urb is submitted. If si470x_start_usb() fails and urb is not submitted, i.e. submitting usb fails, it just frees struct si470x_device object.
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) |
|---|---|---|---|---|---|
| 779471110c6f0f7f7c223fc696170ec750ac3531 | affected | git | 146bd005ebb01ae190c22af050cb98623958c373 | Unavailable | None listed |
| 779471110c6f0f7f7c223fc696170ec750ac3531 | affected | git | 8c6151b8e8dd2d98ad2cd725d26d1e103d989891 | Unavailable | None listed |
| 779471110c6f0f7f7c223fc696170ec750ac3531 | affected | git | 52f54fe78cca24850a30865037250f63eb3d5bf7 | Unavailable | None listed |
| 779471110c6f0f7f7c223fc696170ec750ac3531 | affected | git | 0ca298d548461d29615f9a2b1309e8dcf4a352c6 | Unavailable | None listed |
| 779471110c6f0f7f7c223fc696170ec750ac3531 | affected | git | 1c6447d0fc68650e51586dde79b5090d9d77f13a | Unavailable | None listed |
| 779471110c6f0f7f7c223fc696170ec750ac3531 | affected | git | 6c8aee0c8fcc6dda94315f7908e8fa9bc75abe75 | Unavailable | None listed |
| 779471110c6f0f7f7c223fc696170ec750ac3531 | affected | git | 63648a7bd1a7599bcc2040a6d1792363ae4c2e1b | Unavailable | None listed |
| 779471110c6f0f7f7c223fc696170ec750ac3531 | affected | git | 92b0888398e4ba51d93b618a6506781f4e3879c9 | Unavailable | None listed |
| 779471110c6f0f7f7c223fc696170ec750ac3531 | affected | git | 7d21e0b1b41b21d628bf2afce777727bd4479aa5 | 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) |
|---|---|---|---|---|---|
| 3.6 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.6 | Unavailable | None listed |
| 4.9.337 | unaffected | semver | Unavailable | 4.9.* | None listed |
| 4.14.303 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.270 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.229 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.163 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.86 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.0.16 | unaffected | semver | Unavailable | 6.0.* | None listed |
| 6.1.2 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |