Reachable Assertion Affecting perf package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CENTOS10-PERF-21141690
- published17 Oct 2026
- disclosed14 Oct 2026
Introduced: 14 Oct 2026
NewCVE-2026-98406 (opens in a new tab)How to fix?
There is no fixed version for Centos:10 perf.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Centos.
See How to fix? for Centos:10 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: avoid WARN in set_bitrate_mask when sdata not in driver
ieee80211_set_bitrate_mask() checks if the interface is running via ieee80211_sdata_running(), but it does not check if the interface is still present in the driver.
When sdata is running but IEEE80211_SDATA_IN_DRIVER is not set, the call reaches drv_set_bitrate_mask() in driver-ops.h which hits
wlan1: Failed check-sdata-in-driver check, flags: 0x0 WARNING: net/mac80211/driver-ops.h:884 at drv_set_bitrate_mask
Syzkaller triggers this via wext SIOCSIWRATE ioctl. The Call Trace shows wext_ioctl_dispatch() in wext-core.c dispatching the ioctl, calling ioctl_standard_call() for SIOCSIWRATE, which calls cfg80211_wext_siwrate() in wext-compat.c. That builds a bitrate mask and calls rdev_set_bitrate_mask() which ends up in ieee80211_set_bitrate_mask() in cfg.c. The interface is marked running via SDATA_STATE_RUNNING but flags is 0, so check_sdata_in_driver() fails.
When the interface is being torn down, or when wext ioctl is issued during interface bringup before drv_add_interface() sets IN_DRIVER, the running check passes while IN_DRIVER is clear.
Check IEEE80211_SDATA_IN_DRIVER in ieee80211_set_bitrate_mask() before calling the driver, returning -ENETDOWN. This avoids the WARN_ONCE in driver-ops.h and matches other cfg.c operations that bail early when not in driver.
This change should be safe because wiphy mutex is held in cfg80211_wext_siwrate() via guard(wiphy), and IN_DRIVER is set/cleared under RTNL and wiphy paths in drv_add_interface() and drv_remove_interface() in driver-ops.c, so the check is race-free against driver add/remove. Returning -ENETDOWN is the same error other not-running paths use and does not introduce new locking.
[also add second syzbot report]
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2552212
- https://access.redhat.com/security/cve/CVE-2026-98406
- https://git.kernel.org/stable/c/0d1700394e9f5d0bd9bebad8d5a50edf983f52fd
- https://git.kernel.org/stable/c/4095b66acae9893dd13deb39a4331651cb2f822b
- https://git.kernel.org/stable/c/432c8532d5ccc2af77da43ed6ef1c80495a4efe8
- https://git.kernel.org/stable/c/4ba86c44b2fcb1c3175caa2456b6d58f483446ab
- https://git.kernel.org/stable/c/7978dda63d2b109ea9c3f7a096cd1aac6542cd54
- https://git.kernel.org/stable/c/c2cd9c44777cf97be3e35c10b7c2d8f59ebb9306
- https://git.kernel.org/stable/c/c4ee5685af444024e6222ce29f6ed36adc44ffc3
- https://git.kernel.org/stable/c/da2ca406f45a6e21760243152ed8d2e8e72915c2