cbcvebase.
CVE-2024-42246
published 2024-08-07

CVE-2024-42246: In the Linux kernel, the following vulnerability has been resolved: net, sunrpc: Remap EPERM in case of connection failure in xs_tcp_setup_socket When using a…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.23%
14.0th percentile
In the Linux kernel, the following vulnerability has been resolved: net, sunrpc: Remap EPERM in case of connection failure in xs_tcp_setup_socket When using a BPF program on kernel_connect(), the call can return -EPERM. This causes xs_tcp_setup_socket() to loop forever, filling up the syslog and causing the kernel to potentially freeze up. Neil suggested: This will propagate -EPERM up into other layers which might not be ready to handle it. It might be safer to map EPERM to an error we would be more likely to expect from the network system - such as ECONNREFUSED or ENETDOWN. ECONNREFUSED as error seems reasonable. For programs setting a different error can be out of reach (see handling in 4fbac77d2d09) in particular on kernels which do not have f10d05966196 ("bpf: Make BPF_PROG_RUN_ARRAY return -err instead of allow boolean"), thus given that it is better to simply remap for consistent behavior. UDP does handle EPERM in xs_udp_send_request().

Affected

29 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.106-1 (bookworm)linux 6.1.106-1 (bookworm)
debianlinux-6.1< linux 6.1.106-1 (bookworm)linux 6.1.106-1 (bookworm)
linuxlinux
linuxlinux>= 4fbac77d2d092b475dda9eea66da674369665427 < bc790261218952635f846aaf90bcc0974f6f62c6bc790261218952635f846aaf90bcc0974f6f62c6
linuxlinux>= 4fbac77d2d092b475dda9eea66da674369665427 < 934247ea65bc5eca8bdb7f8c0ddc15cef992a5d6934247ea65bc5eca8bdb7f8c0ddc15cef992a5d6
linuxlinux>= 4fbac77d2d092b475dda9eea66da674369665427 < 02ee1976edb21a96ce8e3fd4ef563f14cc16d04102ee1976edb21a96ce8e3fd4ef563f14cc16d041
linuxlinux>= 4fbac77d2d092b475dda9eea66da674369665427 < 5d8254e012996cee1a0f9cc920531cb7e4d9a0115d8254e012996cee1a0f9cc920531cb7e4d9a011
linuxlinux>= 4fbac77d2d092b475dda9eea66da674369665427 < f2431e7db0fe0daccb2f06bb0d23740affcd2fa6f2431e7db0fe0daccb2f06bb0d23740affcd2fa6
linuxlinux>= 4fbac77d2d092b475dda9eea66da674369665427 < d6c686c01c5f12ff8f7264e0ddf71df6cb0d4414d6c686c01c5f12ff8f7264e0ddf71df6cb0d4414
linuxlinux>= 4fbac77d2d092b475dda9eea66da674369665427 < f388cfd913a2b96c05339a335f365795db1b36b6f388cfd913a2b96c05339a335f365795db1b36b6
linuxlinux>= 4fbac77d2d092b475dda9eea66da674369665427 < 626dfed5fa3bfb41e0dffd796032b555b69f9cde626dfed5fa3bfb41e0dffd796032b555b69f9cde
linuxlinux_kernel>= 0 < 5.10.226-15.10.226-1
linuxlinux_kernel>= 0 < 6.1.106-16.1.106-1
linuxlinux_kernel>= 0 < 6.9.10-16.9.10-1
linuxlinux_kernel>= 0 < 6.9.10-16.9.10-1
linuxlinux_kernel>= 0 < 5.4.0-200.2205.4.0-200.220
linuxlinux_kernel>= 0 < 5.15.0-125.1355.15.0-125.135
linuxlinux_kernel>= 0 < 6.8.0-48.486.8.0-48.48
linuxlinux_kernel>= 4.17 < 6.1.1006.1.100
linuxlinux_kernel>= 6.2 < 6.6.416.6.41
linuxlinux_kernel>= 6.7 < 6.9.106.9.10
msrcazl3_kernel_6.6.35.1-5_on_azure_linux_3.0
msrcazl3_kernel_6.6.43.1-7_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
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.