CVE-2021-47571
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect() The free_rtllib() function frees the "dev" pointer so there is use after free on the next line.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.21%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: staging: rtl8192e: Fix use after free in _rtl92e_pci_disconnect() The free_rtllib() function frees the "dev" pointer so there is use after free on the next line. Re-arrange things to avoid that.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.21% probability · 12th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6Patch
- https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64Patch
- https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683bPatch
- https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4Patch
- https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13efPatch
- https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82Patch
- https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443Patch
- https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594Patch
- https://git.kernel.org/stable/c/2e1ec01af2c7139c6a600bbfaea1a018b35094b6Patch
- https://git.kernel.org/stable/c/8d0163cec7de995f9eb9c3128c83fb84f0cb1c64Patch
- https://git.kernel.org/stable/c/9186680382934b0e7529d3d70dcc0a21d087683bPatch
- https://git.kernel.org/stable/c/b535917c51acc97fb0761b1edec85f1f3d02bda4Patch
- https://git.kernel.org/stable/c/bca19bb2dc2d89ce60c4a4a6e59609d4cf2e13efPatch
- https://git.kernel.org/stable/c/c0ef0e75a858cbd8618b473f22fbca36106dcf82Patch
- https://git.kernel.org/stable/c/d43aecb694b10db9a4228ce2d38b5ae8de374443Patch
- https://git.kernel.org/stable/c/e27ee2f607fe6a9b923ef1fc65461c0613c97594Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.