CVE-2021-47603

In the Linux kernel, the following vulnerability has been resolved: audit: improve robustness of the audit queue handling If the audit daemon were ever to get stuck in a stopped state the kernel's kauditdthread could get blocked attempting to send audit records to the userspace audit daemon. With...

CVE-2021-47602

In the Linux kernel, the following vulnerability has been resolved: mac80211: track only QoS data frames for admission control For admission control, obviously all of that only works for QoS data frames, otherwise we cannot even access the QoS field in the header. Syzbot reported see below an...

CVE-2021-47601 tee: amdtee: fix an IS_ERR() vs NULL bug

In the Linux kernel, the following vulnerability has been resolved: tee: amdtee: fix an ISERR vs NULL bug The getfreepages function does not return error pointers it returns NULL so fix this condition to avoid a NULL dereference...

CVE-2021-47601 tee: amdtee: fix an IS_ERR() vs NULL bug

In the Linux kernel, the following vulnerability has been resolved: tee: amdtee: fix an ISERR vs NULL bug The getfreepages function does not return error pointers it returns NULL so fix this condition to avoid a NULL dereference...

CVE-2021-47600 dm btree remove: fix use after free in rebalance_children()

In the Linux kernel, the following vulnerability has been resolved: dm btree remove: fix use after free in rebalancechildren Move dmtmunlock after dmtmdec...

CVE-2021-47599

In the Linux kernel, the following vulnerability has been resolved: btrfs: use latestdev in btrfsshowdevname The test case btrfs/238 reports the warning below: WARNING: CPU: 3 PID: 481 at fs/btrfs/super.c:2509 btrfsshowdevname+0x104/0x1e8 btrfs CPU: 2 PID: 1 Comm: systemd Tainted: G W O...

CVE-2021-47598

In the Linux kernel, the following vulnerability has been resolved: schcake: do not call cakedestroy from cakeinit qdiscs are not supposed to call their own destroy method from init, because core stack already does that. syzbot was able to trigger use after free: DEBUGLOCKSWARNONlock-magic != loc...

CVE-2021-47596

In the Linux kernel, the following vulnerability has been resolved: net: hns3: fix use-after-free bug in hclgevfsendmbxmsg Currently, the hns3remove function firstly uninstall client instance, and then uninstall acceletion engine device. The netdevice is freed in client instance uninstall process...

CVE-2021-47595

In the Linux kernel, the following vulnerability has been resolved: net/sched: schets: don't remove idle classes from the round-robin list Shuang reported that the following script: 1 tc qdisc add dev ddd0 handle 10: parent 1: ets bands 8 strict 4 priomap 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 2 mauseza...

CVE-2021-47593 mptcp: clear 'kern' flag from fallback sockets

In the Linux kernel, the following vulnerability has been resolved: mptcp: clear 'kern' flag from fallback sockets The mptcp ULP extension relies on sk-sksockkern being set correctly: It prevents setsockoptfd, IPPROTOTCP, TCPULP, "mptcp", 6; from working for plain tcp sockets any userspace-expose...

CVE-2021-47594

The CVE-2021-47594 entry is a legitimate Linux kernel vulnerability. It describes that the PM could close MPTCP listener subflows when deleting an endpoint, potentially affecting listener sockets bound to the endpoint IP and risking a NULL pointer dereference reported by syzbot. The connected doc...

CVE-2021-47594

In the Linux kernel, the following vulnerability has been resolved: mptcp: never allow the PM to close a listener subflow Currently, when deleting an endpoint the netlink PM treverses all the local MPTCP sockets, regardless of their status. If an MPTCP listener socket is bound to the IP matching...

CVE-2021-47592

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: fix tc flower deletion for VLAN priority Rx steering To replicate the issue:- 1 Add 1 flower filter for VLAN Priority based frame steering:- $ IFDEVNAME=eth0 $ tc qdisc add dev $IFDEVNAME ingress $ tc qdisc add dev...

CVE-2021-47591 mptcp: remove tcp ulp setsockopt support

In the Linux kernel, the following vulnerability has been resolved: mptcp: remove tcp ulp setsockopt support TCPULP setsockopt cannot be used for mptcp because its already used internally to plumb subflow tcp sockets to the mptcp layer. syzbot managed to trigger a crash for mptcp connections that...

CVE-2021-47590 mptcp: fix deadlock in __mptcp_push_pending()

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix deadlock in mptcppushpending mptcppushpending may call mptcpflushjoinlist with subflow socket lock held. If such call hits mptcpsockoptsyncall then subsequently mptcpsockoptsync could try to lock the subflow socket for...

CVE-2021-47590

In the Linux kernel, the following vulnerability has been resolved: mptcp: fix deadlock in mptcppushpending mptcppushpending may call mptcpflushjoinlist with subflow socket lock held. If such call hits mptcpsockoptsyncall then subsequently mptcpsockoptsync could try to lock the subflow socket for...

CVE-2021-47589

In the Linux kernel, the following vulnerability has been resolved: igbvf: fix double free in igbvfprobe In igbvfprobe, if registernetdev fails, the program will go to label errhwinit, and then to label errioremap. In freenetdev which is just below label errioremap, there is listforeachentrysafe...

CVE-2021-47588

In the Linux kernel, the following vulnerability has been resolved: sit: do not call ipip6devfree from sitinitnet ipip6devfree is sit dev-privdestructor, already called by registernetdevice if something goes wrong. Alternative would be to make ipip6devfree robust against multiple invocations, but...

CVE-2021-47586

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: dwmac-rk: fix oob read in rkgmacsetup KASAN reports an out-of-bounds read in rkgmacsetup on the line: while ops-regsi This happens for most platforms since the regs flexible array member is empty, so the memory after...

CVE-2021-47584

In the Linux kernel, the following vulnerability has been resolved: iocost: Fix divide-by-zero on donation from low hweight cgroup The donation calculation logic assumes that the donor has non-zero after-donation hweight, so the lowest active hweight a donating cgroup can have is 2 so that it can...