CVE-2021-47418 net_sched: fix NULL deref in fifo_set_limit()

In the Linux kernel, the following vulnerability has been resolved: netsched: fix NULL deref in fifosetlimit syzbot reported another NULL deref in fifosetlimit 1 I could repro the issue with : unshare -n tc qd add dev lo root handle 1:0 tbf limit 200000 burst 70000 rate 100Mbit tc qd replace dev ...

CVE-2021-47418

In the Linux kernel, the following vulnerability has been resolved: netsched: fix NULL deref in fifosetlimit syzbot reported another NULL deref in fifosetlimit 1 I could repro the issue with : unshare -n tc qd add dev lo root handle 1:0 tbf limit 200000 burst 70000 rate 100Mbit tc qd replace dev ...

CVE-2021-47416 phy: mdio: fix memory leak

In the Linux kernel, the following vulnerability has been resolved: phy: mdio: fix memory leak Syzbot reported memory leak in MDIO bus interface, the problem was in wrong state logic. MDIOBUSALLOCATED indicates 2 states: 1. Bus is only allocated 2. Bus allocated and mdiobusregister fails, but...

CVE-2021-47408 netfilter: conntrack: serialize hash resizes and cleanups

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: serialize hash resizes and cleanups Syzbot was able to trigger the following warning 1 No repro found by syzbot yet but I was able to trigger similar issue by having 2 scripts running in parallel, changing...

CVE-2021-47408

CVE-2021-47408 affects the Linux kernel netfilter conntrack code. The issue arises when the conntrack hash table resizes or during cleanup, causing nf_ct_iterate_cleanup to restart after a resize and delaying net_namespace teardown. The available connected documents state that adding a mutex to s...

CVE-2021-47404 HID: betop: fix slab-out-of-bounds Write in betop_probe

In the Linux kernel, the following vulnerability has been resolved: HID: betop: fix slab-out-of-bounds Write in betopprobe Syzbot reported slab-out-of-bounds Write bug in hid-betopff driver. The problem is the driver assumes the device must have an input report but some malicious devices violate...

CVE-2021-47404 HID: betop: fix slab-out-of-bounds Write in betop_probe

In the Linux kernel, the following vulnerability has been resolved: HID: betop: fix slab-out-of-bounds Write in betopprobe Syzbot reported slab-out-of-bounds Write bug in hid-betopff driver. The problem is the driver assumes the device must have an input report but some malicious devices violate...

CVE-2021-47405 HID: usbhid: free raw_report buffers in usbhid_stop

In the Linux kernel, the following vulnerability has been resolved: HID: usbhid: free rawreport buffers in usbhidstop Free the unsent rawreport buffers when the device is removed. Fixes a memory leak reported by syzbot at: https://syzkaller.appspot.com/bug?id=7b4fa7cb1a7c2d3342a2a8a6c53371c8c418a...

CVE-2021-47404

Summary (CVE-2021-47404): The issue stems from a slab-out-of-bounds write in the HID Betop driver (betopff) in the Linux kernel. Syzbot observed a write beyond slab bounds due to assuming an input report exists; malicious devices can violate this assumption. The public advisories, including Astra...

CVE-2021-47405

In the Linux kernel, the following vulnerability has been resolved: HID: usbhid: free rawreport buffers in usbhidstop Free the unsent rawreport buffers when the device is removed. Fixes a memory leak reported by syzbot at: https://syzkaller.appspot.com/bug?id=7b4fa7cb1a7c2d3342a2a8a6c53371c8c418a...

CVE-2021-47397 sctp: break out if skb_header_pointer returns NULL in sctp_rcv_ootb

In the Linux kernel, the following vulnerability has been resolved: sctp: break out if skbheaderpointer returns NULL in sctprcvootb We should always check if skbheaderpointer's return is NULL before using it, otherwise it may cause null-ptr-deref, as syzbot reported: KASAN: null-ptr-deref in rang...

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-2021-47395

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-2021-47370

CVE-2021-47370 affects the Linux kernel and concerns the MPTCP path: a signed/unsigned comparison in the code path that refills the TX cache can misbehave when size_goal is smaller than skb->len, causing the core TCP path to allocate an skb without the MPTCP extension. The fix rewrites the exp...

CVE-2021-47370 mptcp: ensure tx skbs always have the MPTCP ext

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure tx skbs always have the MPTCP ext Due to signed/unsigned comparison, the expression: info-sizegoal - skb-len 0 evaluates to true when the size goal is smaller than the skb size. That results in lack of tx cache...

CVE-2021-47370 mptcp: ensure tx skbs always have the MPTCP ext

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure tx skbs always have the MPTCP ext Due to signed/unsigned comparison, the expression: info-sizegoal - skb-len 0 evaluates to true when the size goal is smaller than the skb size. That results in lack of tx cache...

CVE-2021-47370

In the Linux kernel, the following vulnerability has been resolved: mptcp: ensure tx skbs always have the MPTCP ext Due to signed/unsigned comparison, the expression: info-sizegoal - skb-len 0 evaluates to true when the size goal is smaller than the skb size. That results in lack of tx cache...

CVE-2021-47344 media: zr364xx: fix memory leak in zr364xx_start_readpipe

In the Linux kernel, the following vulnerability has been resolved: media: zr364xx: fix memory leak in zr364xxstartreadpipe syzbot reported memory leak in zr364xx driver. The problem was in non-freed urb in case of usbsubmiturb fail. backtrace: kmalloc include/linux/slab.h:561 inline...