CVE-2023-52842: In the Linux kernel, the following vulnerability has been resolved: virtio/vsock: Fix uninit-value in virtio_transport_recv_pkt() KMSAN reported the following…

PriorityP429high7.1CVSS 3.1

AVLACLPRLUINSUCHINAH

EPSS

0.24%

15.8th percentile

In the Linux kernel, the following vulnerability has been resolved: virtio/vsock: Fix uninit-value in virtio_transport_recv_pkt() KMSAN reported the following uninit-value access issue: BUG: KMSAN: uninit-value in virtio_transport_recv_pkt+0x1dfb/0x26a0 net/vmw_vsock/virtio_transport_common.c:1421 virtio_transport_recv_pkt+0x1dfb/0x26a0 net/vmw_vsock/virtio_transport_common.c:1421 vsock_loopback_work+0x3bb/0x5a0 net/vmw_vsock/vsock_loopback.c:120 process_one_work kernel/workqueue.c:2630 [inline] process_scheduled_works+0xff6/0x1e60 kernel/workqueue.c:2703 worker_thread+0xeca/0x14d0 kernel/workqueue.c:2784 kthread+0x3cc/0x520 kernel/kthread.c:388 ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 Uninit was stored to memory at: virtio_transport_space_update net/vmw_vsock/virtio_transport_common.c:1274 [inline] virtio_transport_recv_pkt+0x1ee8/0x26a0 net/vmw_vsock/virtio_transport_common.c:1415 vsock_loopback_work+0x3bb/0x5a0 net/vmw_vsock/vsock_loopback.c:120 process_one_work kernel/workqueue.c:2630 [inline] process_scheduled_works+0xff6/0x1e60 kernel/workqueue.c:2703 worker_thread+0xeca/0x14d0 kernel/workqueue.c:2784 kthread+0x3cc/0x520 kernel/kthread.c:388 ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 Uninit was created at: slab_post_alloc_hook+0x105/0xad0 mm/slab.h:767 slab_alloc_node mm/slub.c:3478 [inline] kmem_cache_alloc_node+0x5a2/0xaf0 mm/slub.c:3523 kmalloc_reserve+0x13c/0x4a0 net/core/skbuff.c:559 __alloc_skb+0x2fd/0x770 net/core/skbuff.c:650 alloc_skb include/linux/skbuff.h:1286 [inline] virtio_vsock_alloc_skb include/linux/virtio_vsock.h:66 [inline] virtio_transport_alloc_skb+0x90/0x11e0 net/vmw_vsock/virtio_transport_common.c:58 virtio_transport_reset_no_sock net/vmw_vsock/virtio_transport_common.c:957 [inline] virtio_transport_recv_pkt+0x1279/0x26a0 net/vmw_vsock/virtio_transport_common.c:1387 vsock_loopback_work+0x3bb/0x5

Affected

9 ranges

Vendor	Product	Version range	Fixed in
debian	linux	< linux 6.1.64-1 (bookworm)	linux 6.1.64-1 (bookworm)
linux	linux	—	—
linux	linux	>= 71dc9ec9ac7d3eee785cdc986c3daeb821381e20 < 0b8906fb48b99e993d6e8a12539f618f4854dd26	0b8906fb48b99e993d6e8a12539f618f4854dd26
linux	linux	>= 71dc9ec9ac7d3eee785cdc986c3daeb821381e20 < 34c4effacfc329aeca5635a69fd9e0f6c90b4101	34c4effacfc329aeca5635a69fd9e0f6c90b4101
linux	linux	>= baddcc2c71572968cdaeee1c4ab3dc0ad90fa765 < cd12535b97dd7d18cf655ec78ce1cf1f29a576be	cd12535b97dd7d18cf655ec78ce1cf1f29a576be
linux	linux_kernel	>= 0 < 6.1.64-1	6.1.64-1
linux	linux_kernel	>= 0 < 6.6.8-1	6.6.8-1
linux	linux_kernel	>= 0 < 6.6.8-1	6.6.8-1
linux	linux_kernel	>= 6.3 < 6.6.2	6.6.2

CVSS provenance

nvdv3.17.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

osv7.1HIGH

vendor_debian7.1HIGH

vendor_redhat7.1HIGH

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