git: 4981b8968d19 - main - libusb: consider bad fd as a broken event
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Date: Wed, 25 Jun 2025 12:40:10 UTC
The branch main has been updated by bapt: URL: https://cgit.FreeBSD.org/src/commit/?id=4981b8968d19f009347ee8844770e84f9b83311e commit 4981b8968d19f009347ee8844770e84f9b83311e Author: SHENGYI HUNG <aokblast@FreeBSD.org> AuthorDate: 2025-06-20 21:45:27 +0000 Commit: Baptiste Daroussin <bapt@FreeBSD.org> CommitDate: 2025-06-25 12:40:02 +0000 libusb: consider bad fd as a broken event Application can use libusb_get_pollfds to get pollfds from libusb then close the fd themselves. This cause the hotplug thread unable to leave because it will be consider as a invalid event then loop forever instead of a broken event that should be quit immediately. Reviewed by: bapt Sponsored by: FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D50959 --- lib/libusb/libusb10_hotplug.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lib/libusb/libusb10_hotplug.c b/lib/libusb/libusb10_hotplug.c index f148e4dd43f5..369539d4512e 100644 --- a/lib/libusb/libusb10_hotplug.c +++ b/lib/libusb/libusb10_hotplug.c @@ -140,6 +140,8 @@ verify_event_validity(libusb_context *ctx) return (valid_event); return (invalid_event); } + if (errno == EBADF) + return (broken_event); return (invalid_event); } else if (ctx->usb_event_mode == usb_event_devd) { char buf[DEVCTL_MAXBUF];