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| author | Oliver Neukum <oneukum@suse.com> | 2026-04-29 11:44:04 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-05-22 11:34:24 +0200 |
| commit | d5559f43d76b398392b26a15cbc16d731969cd1c (patch) | |
| tree | b7607fd9433bc73d65ee0b033a552fdbf57f1aaa /rust/zerocopy/src/pointer/git@git.tavy.me:linux-stable.git | |
| parent | dd0c03d685225cb8fc60c477417d1b9c3b05ba9d (diff) | |
usb: core: hcd: fix possible deadlock in rh control transfers
>From within the SCSI error handler memory allocations must not
trigger IO. Handling errors in UAS and the storage driver may
involve resetting a device. The thread doing the reset itself
relies on VM magic. However, that is insufficient, as resetting
a device involves resuming it. Resumption as well as resetting
involves conrol transfers to the parent of the device to be reset.
That may be a root hub. Hence usbcore must heed the flags passed
to usb_submit_urb() processing control transfers to root hubs.
The problem exist since the storage driver has been merged.
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://patch.msgid.link/20260429094413.181038-1-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'rust/zerocopy/src/pointer/git@git.tavy.me:linux-stable.git')
0 files changed, 0 insertions, 0 deletions