cbcvebase.
CVE-2024-27435
published 2024-05-17

CVE-2024-27435: In the Linux kernel, the following vulnerability has been resolved: nvme: fix reconnection fail due to reserved tag allocation We found a issue on production…

PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.17%
7.1th percentile
In the Linux kernel, the following vulnerability has been resolved: nvme: fix reconnection fail due to reserved tag allocation We found a issue on production environment while using NVMe over RDMA, admin_q reconnect failed forever while remote target and network is ok. After dig into it, we found it may caused by a ABBA deadlock due to tag allocation. In my case, the tag was hold by a keep alive request waiting inside admin_q, as we quiesced admin_q while reset ctrl, so the request maked as idle and will not process before reset success. As fabric_q shares tagset with admin_q, while reconnect remote target, we need a tag for connect command, but the only one reserved tag was held by keep alive command which waiting inside admin_q. As a result, we failed to reconnect admin_q forever. In order to fix this issue, I think we should keep two reserved tags for admin queue.

Affected

28 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.85-1 (bookworm)linux 6.1.85-1 (bookworm)
linuxlinux
linuxlinux>= ed01fee283a067c72b2d6500046080dbc1bb9dae < 149afee5c7418ec5db9d7387b9c9a5c1eb7ea2a8149afee5c7418ec5db9d7387b9c9a5c1eb7ea2a8
linuxlinux>= ed01fee283a067c72b2d6500046080dbc1bb9dae < ff2f90f88d78559802466ad1c84ac5bda4416b3aff2f90f88d78559802466ad1c84ac5bda4416b3a
linuxlinux>= ed01fee283a067c72b2d6500046080dbc1bb9dae < 6851778504cdb49431809b4ba061903d5f592c966851778504cdb49431809b4ba061903d5f592c96
linuxlinux>= ed01fee283a067c72b2d6500046080dbc1bb9dae < 262da920896e2f2ab0e3947d9dbee0aa09045818262da920896e2f2ab0e3947d9dbee0aa09045818
linuxlinux>= ed01fee283a067c72b2d6500046080dbc1bb9dae < de105068fead55ed5c07ade75e9c8e7f86a00d1dde105068fead55ed5c07ade75e9c8e7f86a00d1d
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.1.85-16.1.85-1
linuxlinux_kernel>= 0 < 6.7.12-16.7.12-1
linuxlinux_kernel>= 0 < 6.7.12-16.7.12-1
linuxlinux_kernel>= 0 < 6.8.0-35.356.8.0-35.35
linuxlinux_kernel>= 5.12.1 < 6.1.836.1.83
linuxlinux_kernel>= 6.2 < 6.6.236.6.23
linuxlinux_kernel>= 6.7 < 6.7.116.7.11
linuxlinux_kernel>= 6.8 < 6.8.26.8.2
msrcazl3_hyperv-daemons_6.6.22.1-2_on_azure_linux_3.0
msrcazl3_hyperv-daemons_6.6.35.1-1_on_azure_linux_3.0
msrcazure_linux_3.0_arm
msrcazure_linux_3.0_x64

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_ubuntu6.3MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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