Description
In the Linux kernel, the following vulnerability has been resolved: USB: core: Fix deadlock in usb_deauthorize_interface() Among the attribute file callback routines in drivers/usb/core/sysfs.c, the interface_authorized_store() function is the only one which acquires a device lock on an ancestor device: It calls usb_deauthorize_interface(), which locks the interface's parent USB device. The will lead to deadlock if another process already owns that lock and tries to remove the interface, whether through a configuration change or because the device has been disconnected. As part of the removal procedure, device_del() waits for all ongoing sysfs attribute callbacks to complete. But usb_deauthorize_interface() can't complete until the device lock has been released, and the lock won't be released until the removal has finished. The mechanism provided by sysfs to prevent this kind of deadlock is to use the sysfs_break_active_protection() function, which tells sysfs not to wait for the attribute callback. Reported-and-tested by: Yue Sun <samsun1006219@gmail.com> Reported by: xingwei lee <xrivendell7@gmail.com>
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
310d2b4124c073a2057ef9d952d4d938e9b1dfd9 to < 8cbdd324b41528994027128207fae8100dff094faffected310d2b4124c073a2057ef9d952d4d938e9b1dfd9 to < 12d6a5681a0a5cecc2af7860f0a1613fa7c6e947affected310d2b4124c073a2057ef9d952d4d938e9b1dfd9 to < e451709573f8be904a8a72d0775bf114d7c291d9affected310d2b4124c073a2057ef9d952d4d938e9b1dfd9 to < 1b175bc579f46520b11ecda443bcd2ee4904f66aaffected310d2b4124c073a2057ef9d952d4d938e9b1dfd9 to < ab062fa3dc69aea88fe62162c5881ba14b50ecc5affected310d2b4124c073a2057ef9d952d4d938e9b1dfd9 to < 122a06f1068bf5e39089863f4f60b1f5d4273384affected310d2b4124c073a2057ef9d952d4d938e9b1dfd9 to < dbdf66250d2d33e8b27352fcb901de79f3521057affected310d2b4124c073a2057ef9d952d4d938e9b1dfd9 to < 07acf979da33c721357ff27129edf74c23c036c6affected310d2b4124c073a2057ef9d952d4d938e9b1dfd9 to < 80ba43e9f799cbdd83842fc27db667289b3150f5affected
Linux Linux
Default version status: affected
4.4affected0 to < 4.4unaffected4.19.312 to ≤ 4.19.*unaffected5.4.274 to ≤ 5.4.*unaffected5.10.215 to ≤ 5.10.*unaffected5.15.154 to ≤ 5.15.*unaffected6.1.84 to ≤ 6.1.*unaffected6.6.24 to ≤ 6.6.*unaffected6.7.12 to ≤ 6.7.*unaffected6.8.3 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/8cbdd324b41528994027128207fae8100dff094f ↗
- https://git.kernel.org/stable/c/12d6a5681a0a5cecc2af7860f0a1613fa7c6e947 ↗
- https://git.kernel.org/stable/c/e451709573f8be904a8a72d0775bf114d7c291d9 ↗
- https://git.kernel.org/stable/c/1b175bc579f46520b11ecda443bcd2ee4904f66a ↗
- https://git.kernel.org/stable/c/ab062fa3dc69aea88fe62162c5881ba14b50ecc5 ↗
- https://git.kernel.org/stable/c/122a06f1068bf5e39089863f4f60b1f5d4273384 ↗
- https://git.kernel.org/stable/c/dbdf66250d2d33e8b27352fcb901de79f3521057 ↗
- https://git.kernel.org/stable/c/07acf979da33c721357ff27129edf74c23c036c6 ↗
- https://git.kernel.org/stable/c/80ba43e9f799cbdd83842fc27db667289b3150f5 ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html ↗