cbcvebase.
CVE-2024-49974
published 2024-10-21

CVE-2024-49974: In the Linux kernel, the following vulnerability has been resolved: NFSD: Limit the number of concurrent async COPY operations Nothing appears to limit the…

PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.27%
19.6th percentile
In the Linux kernel, the following vulnerability has been resolved: NFSD: Limit the number of concurrent async COPY operations Nothing appears to limit the number of concurrent async COPY operations that clients can start. In addition, AFAICT each async COPY can copy an unlimited number of 4MB chunks, so can run for a long time. Thus IMO async COPY can become a DoS vector. Add a restriction mechanism that bounds the number of concurrent background COPY operations. Start simple and try to be fair -- this patch implements a per-namespace limit. An async COPY request that occurs while this limit is exceeded gets NFS4ERR_DELAY. The requesting client can choose to send the request again after a delay or fall back to a traditional read/write style copy. If there is need to make the mechanism more sophisticated, we can visit that in future patches.

Affected

24 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.119-1 (bookworm)linux 6.1.119-1 (bookworm)
debianlinux-6.1< linux 6.1.119-1 (bookworm)linux 6.1.119-1 (bookworm)
linuxlinux
linuxlinux>= e0639dc5805a9d4faaa2c07ad98fa853b9529dd3 < 9e52ff544e0bfa09ee339fd7b0937ee3c080c24e9e52ff544e0bfa09ee339fd7b0937ee3c080c24e
linuxlinux>= e0639dc5805a9d4faaa2c07ad98fa853b9529dd3 < 43e46ee5efc03990b223f7aa8b77aa9c3d3acfdf43e46ee5efc03990b223f7aa8b77aa9c3d3acfdf
linuxlinux>= e0639dc5805a9d4faaa2c07ad98fa853b9529dd3 < 7ea9260874b779637aff6d24c344b8ef4ac862a07ea9260874b779637aff6d24c344b8ef4ac862a0
linuxlinux>= e0639dc5805a9d4faaa2c07ad98fa853b9529dd3 < ae267989b7b7933dfedcd26468d0a88fc3a9da9eae267989b7b7933dfedcd26468d0a88fc3a9da9e
linuxlinux>= e0639dc5805a9d4faaa2c07ad98fa853b9529dd3 < b4e21431a0db4854b5023cd5af001be557e6c3dbb4e21431a0db4854b5023cd5af001be557e6c3db
linuxlinux>= e0639dc5805a9d4faaa2c07ad98fa853b9529dd3 < 6a488ad7745b8f64625c6d3a24ce7e448e83f11b6a488ad7745b8f64625c6d3a24ce7e448e83f11b
linuxlinux>= e0639dc5805a9d4faaa2c07ad98fa853b9529dd3 < aadc3bbea163b6caaaebfdd2b6c4667fbc726752aadc3bbea163b6caaaebfdd2b6c4667fbc726752
linuxlinux_kernel< 6.10.146.10.14
linuxlinux_kernel>= 0 < 5.10.234-15.10.234-1
linuxlinux_kernel>= 0 < 6.1.119-16.1.119-1
linuxlinux_kernel>= 0 < 6.11.4-16.11.4-1
linuxlinux_kernel>= 0 < 6.11.4-16.11.4-1
linuxlinux_kernel>= 0 < 5.4.0-214.2345.4.0-214.234
linuxlinux_kernel>= 0 < 5.15.0-135.1465.15.0-135.146
linuxlinux_kernel>= 0 < 6.8.0-54.566.8.0-54.56
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 6.11 < 6.11.36.11.3
msrcazl3_kernel_6.6.64.2-9_on_azure_linux_3.0
msrcazl3_kernel_6.6.92.2-1_on_azure_linux_3.0
msrccbl2_kernel_5.15.176.3-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.182.1-1_on_cbl_mariner_2.0

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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