Description
In the Linux kernel, the following vulnerability has been resolved: can: ems_usb: ems_usb_read_bulk_callback(): fix URB memory leak Fix similar memory leak as in commit 7352e1d5932a ("can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak"). In ems_usb_open(), the URBs for USB-in transfers are allocated, added to the dev->rx_submitted anchor and submitted. In the complete callback ems_usb_read_bulk_callback(), the URBs are processed and resubmitted. In ems_usb_close() the URBs are freed by calling usb_kill_anchored_urbs(&dev->rx_submitted). However, this does not take into account that the USB framework unanchors the URB before the complete function is called. This means that once an in-URB has been completed, it is no longer anchored and is ultimately not released in ems_usb_close(). Fix the memory leak by anchoring the URB in the ems_usb_read_bulk_callback() to the dev->rx_submitted anchor.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
702171adeed3607ee9603ec30ce081411e36ae42 to < e2c71030dc464d437110bcfb367c493fd402bddbaffected702171adeed3607ee9603ec30ce081411e36ae42 to < f48eabd15194b216030b32445f44230df95f5fe0affected702171adeed3607ee9603ec30ce081411e36ae42 to < 61e6d3674c3d1da1475dc207b3e75c55d678d18eaffected702171adeed3607ee9603ec30ce081411e36ae42 to < e9410fdd4d5f7eaa6526d8c80e83029d7c86a8e8affected702171adeed3607ee9603ec30ce081411e36ae42 to < 46a191ff7eeec33a2ccb2a1bfea34e18fbc5dc1aaffected702171adeed3607ee9603ec30ce081411e36ae42 to < 68c62b3e53901846b5f68c5a8bade72a5d9c0b87affected702171adeed3607ee9603ec30ce081411e36ae42 to < 0ce73a0eb5a27070957b67fd74059b6da89cc516affected
Linux Linux
Default version status: affected
2.6.32affected0 to < 2.6.32unaffected5.10.249 to ≤ 5.10.*unaffected5.15.199 to ≤ 5.15.*unaffected6.1.162 to ≤ 6.1.*unaffected6.6.122 to ≤ 6.6.*unaffected6.12.68 to ≤ 6.12.*unaffected6.18.8 to ≤ 6.18.*unaffected6.19 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/e2c71030dc464d437110bcfb367c493fd402bddb ↗
- https://git.kernel.org/stable/c/f48eabd15194b216030b32445f44230df95f5fe0 ↗
- https://git.kernel.org/stable/c/61e6d3674c3d1da1475dc207b3e75c55d678d18e ↗
- https://git.kernel.org/stable/c/e9410fdd4d5f7eaa6526d8c80e83029d7c86a8e8 ↗
- https://git.kernel.org/stable/c/46a191ff7eeec33a2ccb2a1bfea34e18fbc5dc1a ↗
- https://git.kernel.org/stable/c/68c62b3e53901846b5f68c5a8bade72a5d9c0b87 ↗
- https://git.kernel.org/stable/c/0ce73a0eb5a27070957b67fd74059b6da89cc516 ↗