Affected: Linux

In the Linux kernel, the following vulnerability has been resolved:

net/sched: fix use-after-free in taprio_dev_notifier

Since taprio’s taprio_dev_notifier() isn’t protected by an RCU read-side critical section, a race with advance_sched() can lead to a use-after-free.

Adding rcu_read_lock() inside taprio_dev_notifier() prevents this.

kernel: tty: tty_buffer: Fix the softlockup issue in flush_to_ldisc kernel: perf/core: Bail out early if the request AUX area is out of bound kernel: rcu-tasks: Avoid pr_info() with spin lock in cblist_init_generic() kernel: drm/amd/display: Implement bounds check for stream encoder creation in DCN301 kernel: nbd: null check for nla_nest_start kernel: firmware: cs_dsp: Fix overflow checking of wmfw header kernel: powerpc/pseries: Whitelist dtl slub object for copying to userspace kernel: usb: xhci: prevent potential failure in handle_tx_event() for Transfer events without TRB kernel: parport: Proper fix for array out-of-bounds access kernel: blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race kernel: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up kernel: wifi: iwlwifi: limit printed string from FW file kernel: ibmvnic: Use kernel helpers for hex dumps kernel: ext4: avoid journaling sb update on error if journal is destroying kernel: udmabuf: fix a buf size overflow issue during udmabuf creation kernel: net/sched: fix use-after-free in taprio_dev_notifier kernel: sunrpc: handle SVC_GARBAGE during svc auth processing as auth error