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Critical 9.8
net/mlx5e: SHAMPO, Fix incorrect page release
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: SHAMPO, Fix incorrect page release Under the following conditions: 1) No skb created yet 2) header_size == 0 (no SHAMPO header) 3) header_index + 1 % MLX5E_SHAMPO_WQ_HEADER_PER_PAG…
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Critical 9.8
nfsd: ensure that nfsd4_fattr_args.context is zeroed out
In the Linux kernel, the following vulnerability has been resolved: nfsd: ensure that nfsd4_fattr_args.context is zeroed out If nfsd4_encode_fattr4 ends up doing a "goto out" before we get to checking for the security label, then args.context will be set to u…
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Critical 9.8
selinux,smack: don't bypass permissions check in inode_setsecctx hook
In the Linux kernel, the following vulnerability has been resolved: selinux,smack: don't bypass permissions check in inode_setsecctx hook Marek Gresko reports that the root user on an NFS client is able to change the security labels on files on an NFS filesys…
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Critical 9.8
igb: cope with large MAX_SKB_FRAGS
In the Linux kernel, the following vulnerability has been resolved: igb: cope with large MAX_SKB_FRAGS Sabrina reports that the igb driver does not cope well with large MAX_SKB_FRAG values: setting MAX_SKB_FRAG to 45 causes payload corruption on TX. An easy r…
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Critical 9.8
nvme: move stopping keep-alive into nvme_uninit_ctrl()
In the Linux kernel, the following vulnerability has been resolved: nvme: move stopping keep-alive into nvme_uninit_ctrl() Commit 4733b65d82bd ("nvme: start keep-alive after admin queue setup") moves starting keep-alive from nvme_start_ctrl() into nvme_init_c…
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Critical 9.8
atm: idt77252: prevent use after free in dequeue_rx()
In the Linux kernel, the following vulnerability has been resolved: atm: idt77252: prevent use after free in dequeue_rx() We can't dereference "skb" after calling vcc->push() because the skb is released.
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Critical 9.8
ipv6: prevent possible UAF in ip6_xmit()
In the Linux kernel, the following vulnerability has been resolved: ipv6: prevent possible UAF in ip6_xmit() If skb_expand_head() returns NULL, skb has been freed and the associated dst/idev could also have been freed. We must use rcu_read_lock() to prevent a…
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Critical 10.0
bnxt_en: Fix double DMA unmapping for XDP_REDIRECT
In the Linux kernel, the following vulnerability has been resolved: bnxt_en: Fix double DMA unmapping for XDP_REDIRECT Remove the dma_unmap_page_attrs() call in the driver's XDP_REDIRECT code path. This should have been removed when we let the page pool handl…
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Critical 9.8
net/mlx5e: SHAMPO, Fix invalid WQ linked list unlink
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: SHAMPO, Fix invalid WQ linked list unlink When all the strides in a WQE have been consumed, the WQE is unlinked from the WQ linked list (mlx5_wq_ll_pop()). For SHAMPO, it is possib…
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Critical 9.8
usb: vhci-hcd: Do not drop references before new references are gained
In the Linux kernel, the following vulnerability has been resolved: usb: vhci-hcd: Do not drop references before new references are gained At a few places the driver carries stale pointers to references that can still be used. Make sure that does not happen. …
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Critical 9.8
net/mlx5e: Fix CT entry update leaks of modify header context
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Fix CT entry update leaks of modify header context The cited commit allocates a new modify header to replace the old one when updating CT entry. But if failed to allocate a new one…
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Critical 9.8
RDMA/iwcm: Fix a use-after-free related to destroying CM IDs
In the Linux kernel, the following vulnerability has been resolved: RDMA/iwcm: Fix a use-after-free related to destroying CM IDs iw_conn_req_handler() associates a new struct rdma_id_private (conn_id) with an existing struct iw_cm_id (cm_id) as follows: conn_…
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Critical 9.1
tipc: Return non-zero value from tipc_udp_addr2str() on error
In the Linux kernel, the following vulnerability has been resolved: tipc: Return non-zero value from tipc_udp_addr2str() on error tipc_udp_addr2str() should return non-zero value if the UDP media address is invalid. Otherwise, a buffer overflow access can occ…
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Critical 9.8
libceph: fix race between delayed_work() and ceph_monc_stop()
In the Linux kernel, the following vulnerability has been resolved: libceph: fix race between delayed_work() and ceph_monc_stop() The way the delayed work is handled in ceph_monc_stop() is prone to races with mon_fault() and possibly also finish_hunting(). Bo…
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Critical 9.8
net: rswitch: Avoid use-after-free in rswitch_poll()
In the Linux kernel, the following vulnerability has been resolved: net: rswitch: Avoid use-after-free in rswitch_poll() The use-after-free is actually in rswitch_tx_free(), which is inlined in rswitch_poll(). Since `skb` and `gq->skbs[gq->dirty]` are in fact…
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Critical 9.8
ila: block BH in ila_output()
In the Linux kernel, the following vulnerability has been resolved: ila: block BH in ila_output() As explained in commit 1378817486d6 ("tipc: block BH before using dst_cache"), net/core/dst_cache.c helpers need to be called with BH disabled. ila_output() is c…
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Critical 9.8
nvme: avoid double free special payload
In the Linux kernel, the following vulnerability has been resolved: nvme: avoid double free special payload If a discard request needs to be retried, and that retry may fail before a new special payload is added, a double free will result. Clear the RQF_SPECI…
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Critical 9.8
net/sched: Fix UAF when resolving a clash
In the Linux kernel, the following vulnerability has been resolved: net/sched: Fix UAF when resolving a clash KASAN reports the following UAF: BUG: KASAN: slab-use-after-free in tcf_ct_flow_table_process_conn+0x12b/0x380 [act_ct] Read of size 1 at addr ffff88…
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Critical 9.8
staging: gdm724x: fix use after free in gdm_lte_rx()
In the Linux kernel, the following vulnerability has been resolved: staging: gdm724x: fix use after free in gdm_lte_rx() The netif_rx_ni() function frees the skb so we can't dereference it to save the skb->len.
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Critical 9.1
NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes
In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes iattr::ia_size is a loff_t, so these NFSv3 procedures must be careful to deal with incoming client size values that are larger th…
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Critical 9.1
NFSD: Fix ia_size underflow
In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix ia_size underflow iattr::ia_size is a loff_t, which is a signed 64-bit type. NFSv3 and NFSv4 both define file size as an unsigned 64-bit type. Thus there is a range of valid file si…
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Critical 9.8
nvme: fix a possible use-after-free in controller reset during load
In the Linux kernel, the following vulnerability has been resolved: nvme: fix a possible use-after-free in controller reset during load Unlike .queue_rq, in .submit_async_event drivers may not check the ctrl readiness for AER submission. This may lead to a us…
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Critical 9.8
nvme-rdma: fix possible use-after-free in transport error_recovery work
In the Linux kernel, the following vulnerability has been resolved: nvme-rdma: fix possible use-after-free in transport error_recovery work While nvme_rdma_submit_async_event_work is checking the ctrl and queue state before preparing the AER command and sched…
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Critical 9.8
nvme-tcp: fix possible use-after-free in transport error_recovery work
In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: fix possible use-after-free in transport error_recovery work While nvme_tcp_submit_async_event_work is checking the ctrl and queue state before preparing the AER command and schedul…
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Critical 9.8
net: ena: Add validation for completion descriptors consistency
In the Linux kernel, the following vulnerability has been resolved: net: ena: Add validation for completion descriptors consistency Validate that `first` flag is set only for the first descriptor in multi-buffer packets. In case of an invalid descriptor, a re…
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Critical 9.8
tipc: force a dst refcount before doing decryption
In the Linux kernel, the following vulnerability has been resolved: tipc: force a dst refcount before doing decryption As it says in commit 3bc07321ccc2 ("xfrm: Force a dst refcount before entering the xfrm type handlers"): "Crypto requests might return async…
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Critical 9.8
gve: Clear napi->skb before dev_kfree_skb_any()
In the Linux kernel, the following vulnerability has been resolved: gve: Clear napi->skb before dev_kfree_skb_any() gve_rx_free_skb incorrectly leaves napi->skb referencing an skb after it is freed with dev_kfree_skb_any(). This can result in a subsequent cal…
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Critical 9.8
vmxnet3: disable rx data ring on dma allocation failure
In the Linux kernel, the following vulnerability has been resolved: vmxnet3: disable rx data ring on dma allocation failure When vmxnet3_rq_create() fails to allocate memory for rq->data_ring.base, the subsequent call to vmxnet3_rq_destroy_all_rxdataring does…
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Critical 9.8
clk: bcm: dvp: Assign ->num before accessing ->hws
In the Linux kernel, the following vulnerability has been resolved: clk: bcm: dvp: Assign ->num before accessing ->hws Commit f316cdff8d67 ("clk: Annotate struct clk_hw_onecell_data with __counted_by") annotated the hws member of 'struct clk_hw_onecell_data' …
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Critical 9.8
SUNRPC: Fix loop termination condition in gss_free_in_token_pages()
In the Linux kernel, the following vulnerability has been resolved: SUNRPC: Fix loop termination condition in gss_free_in_token_pages() The in_token->pages[] array is not NULL terminated. This results in the following KASAN splat: KASAN: maybe wild-memory-acc…
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Critical 9.8
tipc: improve size validations for received domain records
In the Linux kernel, the following vulnerability has been resolved: tipc: improve size validations for received domain records The function tipc_mon_rcv() allows a node to receive and process domain_record structs from peer nodes to track their views of the n…
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Critical 9.8
net: systemport: Add global locking for descriptor lifecycle
In the Linux kernel, the following vulnerability has been resolved: net: systemport: Add global locking for descriptor lifecycle The descriptor list is a shared resource across all of the transmit queues, and the locking mechanism used today only protects con…
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Critical 9.8
gfs2: Fix potential glock use-after-free on unmount
In the Linux kernel, the following vulnerability has been resolved: gfs2: Fix potential glock use-after-free on unmount When a DLM lockspace is released and there ares still locks in that lockspace, DLM will unlock those locks automatically. Commit fb6791d100…
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Critical 10.0
net: openvswitch: fix overwriting ct original tuple for ICMPv6
In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: fix overwriting ct original tuple for ICMPv6 OVS_PACKET_CMD_EXECUTE has 3 main attributes: - OVS_PACKET_ATTR_KEY - Packet metadata in a netlink format. - OVS_PACKET_ATTR_PAC…
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Critical 9.8
RDMA/rxe: Fix seg fault in rxe_comp_queue_pkt
In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix seg fault in rxe_comp_queue_pkt In rxe_comp_queue_pkt() an incoming response packet skb is enqueued to the resp_pkts queue and then a decision is made whether to run the complet…
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Critical 9.8
NFSD: Fix nfsd4_encode_fattr4() crasher
In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix nfsd4_encode_fattr4() crasher Ensure that args.acl is initialized early. It is used in an unconditional call to kfree() on the way out of nfsd4_encode_fattr4().
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Critical 9.3
Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails
In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Leak pages if set_memory_encrypted() fails In CoCo VMs it is possible for the untrusted host to cause set_memory_encrypted() or set_memory_decrypted() to fail such that an…
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Critical 9.6
Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl
In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Track decrypted status in vmbus_gpadl In CoCo VMs it is possible for the untrusted host to cause set_memory_encrypted() or set_memory_decrypted() to fail such that an erro…
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Critical 9.8
hv_netvsc: Don't free decrypted memory
In the Linux kernel, the following vulnerability has been resolved: hv_netvsc: Don't free decrypted memory In CoCo VMs it is possible for the untrusted host to cause set_memory_encrypted() or set_memory_decrypted() to fail such that an error is returned and t…
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Critical 9.3
Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted
In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: vmbus: Don't free ring buffers that couldn't be re-encrypted In CoCo VMs it is possible for the untrusted host to cause set_memory_encrypted() or set_memory_decrypted() to fail s…