USN-7791-3: Linux kernel vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - Packet sockets; - Network traffic control; - VMware vSockets driver; - XFRM subsystem; CVE-2025-38617,...

SUSE CVE-2023-53539

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix incomplete state save in rxerequester If a send packet is dropped by the IP layer in rxerequester the call to rxexmitpacket can fail with err == -EAGAIN. To recover, the state of the wqe is restored to the state...

SUSE CVE-2023-53578

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: Fix an uninit variable access bug in qrtrtxresume Syzbot reported a bug as following: ===================================================== BUG: KMSAN: uninit-value in qrtrtxresume+0x185/0x1f0 net/qrtr/afqrtr.c:230...

CVE-2023-53585

In the Linux kernel, the following vulnerability has been resolved: bpf: reject unhashed sockets in bpfskassign The semantics for bpfskassign are as follows: sk = somelookupfunc bpfskassignskb, sk bpfskreleasesk That is, the sk is not consumed by bpfskassign. The function therefore needs to make...

AZL-77396 CVE-2023-53539 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix incomplete state save in rxerequester If a send packet is dropped by the IP layer in rxerequester the call to rxexmitpacket can fail with err == -EAGAIN. To recover, the state of the wqe is restored to the state...

CVE-2023-53539

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix incomplete state save in rxerequester If a send packet is dropped by the IP layer in rxerequester the call to rxexmitpacket can fail with err == -EAGAIN. To recover, the state of the wqe is restored to the state...

UBUNTU-CVE-2023-53535

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: Add a check for oversized packets Occasionnaly we may get oversized packets from the hardware which exceed the nomimal 2KiB buffer size we allocate SKBs with. Add an early check which drops the packet to avoid...

UBUNTU-CVE-2022-50490

In the Linux kernel, the following vulnerability has been resolved: bpf: Propagate error from htablockbucket to userspace In htabmaplookupanddeletebatch if htablockbucket returns -EBUSY, it will go to next bucket. Going to next bucket may not only skip the elements in current bucket silently, but...

UBUNTU-CVE-2023-53539

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix incomplete state save in rxerequester If a send packet is dropped by the IP layer in rxerequester the call to rxexmitpacket can fail with err == -EAGAIN. To recover, the state of the wqe is restored to the state...

CVE-2023-53585 bpf: reject unhashed sockets in bpf_sk_assign

In the Linux kernel, the following vulnerability has been resolved: bpf: reject unhashed sockets in bpfskassign The semantics for bpfskassign are as follows: sk = somelookupfunc bpfskassignskb, sk bpfskreleasesk That is, the sk is not consumed by bpfskassign. The function therefore needs to make...

CVE-2022-50490 bpf: Propagate error from htab_lock_bucket() to userspace

In the Linux kernel, the following vulnerability has been resolved: bpf: Propagate error from htablockbucket to userspace In htabmaplookupanddeletebatch if htablockbucket returns -EBUSY, it will go to next bucket. Going to next bucket may not only skip the elements in current bucket silently, but...

CVE-2023-53578

Linux kernel CVE-2023-53578 affects the qrtr path, where an uninit access occurs in qrtr_tx_resume() due to skb->len potentially being smaller than sizeof(struct qrtr_ctrl_pkt) when QRTR_TYPE_RESUME_TX is processed. The vulnerability arises in qrtr_endpoint_post() during syzbot scenarios, trig...

CVE-2023-53578 net: qrtr: Fix an uninit variable access bug in qrtr_tx_resume()

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: Fix an uninit variable access bug in qrtrtxresume Syzbot reported a bug as following: ===================================================== BUG: KMSAN: uninit-value in qrtrtxresume+0x185/0x1f0 net/qrtr/afqrtr.c:230...

CVE-2023-53578 net: qrtr: Fix an uninit variable access bug in qrtr_tx_resume()

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: Fix an uninit variable access bug in qrtrtxresume Syzbot reported a bug as following: ===================================================== BUG: KMSAN: uninit-value in qrtrtxresume+0x185/0x1f0 net/qrtr/afqrtr.c:230...

CVE-2023-53577 bpf, cpumap: Make sure kthread is running before map update returns

In the Linux kernel, the following vulnerability has been resolved: bpf, cpumap: Make sure kthread is running before map update returns The following warning was reported when running stress-mode enabled xdpredirectcpu with some RT threads: ------------ cut here ------------ WARNING: CPU: 4 PID: ...

CVE-2023-53577 bpf, cpumap: Make sure kthread is running before map update returns

In the Linux kernel, the following vulnerability has been resolved: bpf, cpumap: Make sure kthread is running before map update returns The following warning was reported when running stress-mode enabled xdpredirectcpu with some RT threads: ------------ cut here ------------ WARNING: CPU: 4 PID: ...

CVE-2023-53559 ip_vti: fix potential slab-use-after-free in decode_session6

In the Linux kernel, the following vulnerability has been resolved: ipvti: fix potential slab-use-after-free in decodesession6 When ipvti device is set to the qdisc of the sfb type, the cb field of the sent skb may be modified during enqueuing. Then, slab-use-after-free may occur when ipvti devic...

CVE-2023-53539 RDMA/rxe: Fix incomplete state save in rxe_requester

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix incomplete state save in rxerequester If a send packet is dropped by the IP layer in rxerequester the call to rxexmitpacket can fail with err == -EAGAIN. To recover, the state of the wqe is restored to the state...

CVE-2023-53539

CVE-2023-53539 affects the Linux kernel RDMA/rxe subsystem, specifically the rxe_requester path. The root cause is incomplete state save/restore of the wqe, notably the dma struct used to process the sge table, which is not preserved when a send packet is dropped and a retransmit is attempted. Th...

CVE-2023-53539 RDMA/rxe: Fix incomplete state save in rxe_requester

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix incomplete state save in rxerequester If a send packet is dropped by the IP layer in rxerequester the call to rxexmitpacket can fail with err == -EAGAIN. To recover, the state of the wqe is restored to the state...