CVE-2021-47397

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

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-2021-47222

In the Linux kernel, the following vulnerability has been resolved: net: bridge: fix vlan tunnel dst refcnt when egressing The egress tunnel code uses dstclone and directly sets the result which is wrong because the entry might have 0 refcnt or be already deleted, causing number of problems. It...

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

CVE-2021-47418 refers to a Linux kernel vulnerability in net_sched: a NULL pointer dereference inside fifo_set_limit() that could OOPS when adjusting limits on certain qdiscs (notably pfifo_fast, which lacks a change() operation). The issue was reproduced via syzbot and the fix makes fifo_set_lim...

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-2021-47397 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-2021-47370 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-2024-36007 mlxsw: spectrum_acl_tcam: Fix warning during rehash

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrumacltcam: Fix warning during rehash As previously explained, the rehash delayed work migrates filters from one region to another. This is done by iterating over all chunks all the filters with the same priority in t...

CVE-2024-36004 i40e: Do not use WQ_MEM_RECLAIM flag for workqueue

In the Linux kernel, the following vulnerability has been resolved: i40e: Do not use WQMEMRECLAIM flag for workqueue Issue reported by customer during SRIOV testing, call trace: When both i40e and the i40iw driver are loaded, a warning in checkflushdependency is being triggered. This seems to be...

CVE-2024-35890

In the Linux kernel, the following vulnerability has been resolved: gro: fix ownership transfer If packets are GROed with fraglist they might be segmented later on and continue their journey in the stack. In skbsegmentlist those skbs can be reused as-is. This is an issue as their destructor was...

CVE-2024-35802

A flaw was found in the Linux kernel. Incorrect position-dependent variable references in the startup code may lead to a crash...

CVE-2024-35853

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrumacltcam: Fix memory leak during rehash The rehash delayed work migrates filters from one region to another. This is done by iterating over all chunks all the filters with the same priority in the region and in each...

CVE-2022-48692

In the Linux kernel, the following vulnerability has been resolved: RDMA/srp: Set scmnd-result only when scmnd is not NULL This change fixes the following kernel NULL pointer dereference which is reproduced by blktests srp/007 occasionally. BUG: kernel NULL pointer dereference, address:...

CVE-2022-48673 net/smc: Fix possible access to freed memory in link clear

In the Linux kernel, the following vulnerability has been resolved: net/smc: Fix possible access to freed memory in link clear After modifying the QP to the Error state, all RX WR would be completed with WC in IBWCWRFLUSHERR status. Current implementation does not wait for it is done, but destroy...

CVE-2024-27062 nouveau: lock the client object tree.

In the Linux kernel, the following vulnerability has been resolved: nouveau: lock the client object tree. It appears the client object tree has no locking unless I've missed something else. Fix races around adding/removing client objects, mostly vram bar mappings. 4562.099306 general protection...

CVE-2024-27060 thunderbolt: Fix NULL pointer dereference in tb_port_update_credits()

In the Linux kernel, the following vulnerability has been resolved: thunderbolt: Fix NULL pointer dereference in tbportupdatecredits Olliver reported that his system crashes when plugging in Thunderbolt 1 device: BUG: kernel NULL pointer dereference, address: 0000000000000020 PF: supervisor read...

CVE-2024-27018 netfilter: br_netfilter: skip conntrack input hook for promisc packets

In the Linux kernel, the following vulnerability has been resolved: netfilter: brnetfilter: skip conntrack input hook for promisc packets For historical reasons, when bridge device is in promisc mode, packets that are directed to the taps follow bridge input hook path. This patch adds a workaroun...

CVE-2024-26958

In the Linux kernel, the following vulnerability has been resolved: nfs: fix UAF in direct writes In production we have been hitting the following warning consistently ------------ cut here ------------ refcountt: underflow; use-after-free. WARNING: CPU: 17 PID: 1800359 at lib/refcount.c:28...