UBUNTU-CVE-2021-47396

In the Linux kernel, the following vulnerability has been resolved: mac80211-hwsim: fix late beacon hrtimer handling Thomas explained in https://lore.kernel.org/r/87mtoeb4hb.ffs@tglx that our handling of the hrtimer here is wrong: If the timer fires late e.g. due to vCPU scheduling, as reported b...

UBUNTU-CVE-2021-47388

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix use-after-free in CCMP/GCMP RX When PN checking is done in mac80211, for fragmentation we need to copy the PN to the RX struct so we can later use it to do a comparison, since commit bf30ca922a0c "mac80211: check...

CVE-2021-47396

In the Linux kernel, the following vulnerability has been resolved: mac80211-hwsim: fix late beacon hrtimer handling Thomas explained in https://lore.kernel.org/r/87mtoeb4hb.ffs@tglx that our handling of the hrtimer here is wrong: If the timer fires late e.g. due to vCPU scheduling, as reported b...

CVE-2021-47395

In the Linux kernel, the following vulnerability has been resolved: mac80211: limit injected vht mcs/nss in ieee80211parsetxradiotap Limit max values for vht mcs and nss in ieee80211parsetxradiotap routine in order to fix the following warning reported by syzbot: WARNING: CPU: 0 PID: 10717 at...

CVE-2021-47396 mac80211-hwsim: fix late beacon hrtimer handling

In the Linux kernel, the following vulnerability has been resolved: mac80211-hwsim: fix late beacon hrtimer handling Thomas explained in https://lore.kernel.org/r/87mtoeb4hb.ffs@tglx that our handling of the hrtimer here is wrong: If the timer fires late e.g. due to vCPU scheduling, as reported b...

CVE-2021-47395 mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap

In the Linux kernel, the following vulnerability has been resolved: mac80211: limit injected vht mcs/nss in ieee80211parsetxradiotap Limit max values for vht mcs and nss in ieee80211parsetxradiotap routine in order to fix the following warning reported by syzbot: WARNING: CPU: 0 PID: 10717 at...

CVE-2021-47395 mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap

In the Linux kernel, the following vulnerability has been resolved: mac80211: limit injected vht mcs/nss in ieee80211parsetxradiotap Limit max values for vht mcs and nss in ieee80211parsetxradiotap routine in order to fix the following warning reported by syzbot: WARNING: CPU: 0 PID: 10717 at...

CVE-2021-47395

CVE-2021-47395 : Linux kernel/mac80211 vulnerability where the rate limiting for injected VHT MCS/NSS in ieee80211_parse_tx_radiotap was tightened to fix a syzkaller warning. Affected component: mac80211 (ieee80211_parse_tx_radiotap, ieee80211_rate_set_vht). Reported impact in the public docs is ...

CVE-2021-47396

CVE-2021-47396 is a Linux kernel issue affecting mac80211-hwsim beacon timing. The root cause is improper late hrtimer handling: when a timer fires late, the code re-arms for the next deadline, which can already be in the past, causing repeated misalignment and potential stalls. The fix, as descr...

CVE-2021-47388

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix use-after-free in CCMP/GCMP RX When PN checking is done in mac80211, for fragmentation we need to copy the PN to the RX struct so we can later use it to do a comparison, since commit bf30ca922a0c "mac80211: check...

CVE-2021-47388

In the Linux kernel, CVE-2021-47388 affects mac80211 within CCMP/GCMP RX, where PN checking for fragmentation could use a stale hdr reference after a potential reallocation, leading to a use-after-free. The fix reloads the PN/hdr after the reallocating code path to ensure the PN is checked agains...

CVE-2021-47388 mac80211: fix use-after-free in CCMP/GCMP RX

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix use-after-free in CCMP/GCMP RX When PN checking is done in mac80211, for fragmentation we need to copy the PN to the RX struct so we can later use it to do a comparison, since commit bf30ca922a0c "mac80211: check...

CVE-2021-47388 mac80211: fix use-after-free in CCMP/GCMP RX

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix use-after-free in CCMP/GCMP RX When PN checking is done in mac80211, for fragmentation we need to copy the PN to the RX struct so we can later use it to do a comparison, since commit bf30ca922a0c "mac80211: check...

CVE-2021-47251

Summary: CVE-2021-47251 affects the Linux kernel’s wireless stack via mac80211, where the skb length check in ieee80211_scan_rx() was corrected. The fix replaces hard-coded header-length constants with dynamic calculation based on the frame type, preventing a validation WARN_ON in cfg80211 later....

CVE-2021-47251 mac80211: fix skb length check in ieee80211_scan_rx()

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix skb length check in ieee80211scanrx Replace hard-coded compile-time constants for header length check with dynamic determination based on the frame type. Otherwise, we hit a validation WARNON in cfg80211 later. styl...

CVE-2021-47251

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix skb length check in ieee80211scanrx Replace hard-coded compile-time constants for header length check with dynamic determination based on the frame type. Otherwise, we hit a validation WARNON in cfg80211 later. styl...

CVE-2021-47225

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix deadlock in AP/VLAN handling Syzbot reports that when you have APVLAN interfaces that are up and close the AP interface they belong to, we get a deadlock. No surprise - since we devclose them with the wiphy mutex...

CVE-2021-47225

Linux kernel mac80211 deadlock when AP_VLANs are up and the AP interface is closed. Root cause: dev_close() held the wiphy mutex triggers netdev cfg80211 notifier to re-acquire the wiphy mutex. Fixes described: (1) prevent changing iftype while AP_VLANs are up; (2) move the dev_close() loop over ...

CVE-2021-47225 mac80211: fix deadlock in AP/VLAN handling

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix deadlock in AP/VLAN handling Syzbot reports that when you have APVLAN interfaces that are up and close the AP interface they belong to, we get a deadlock. No surprise - since we devclose them with the wiphy mutex...

SUSE CVE-2024-35789

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: check/clear fast rx for non-4addr sta VLAN changes When moving a station out of a VLAN and deleting the VLAN afterwards, the fastrx entry still holds a pointer to the VLAN's netdev, which can cause use-after-free...