cbcvebase.
CVE-2024-42082
published 2024-07-29

CVE-2024-42082: In the Linux kernel, the following vulnerability has been resolved: xdp: Remove WARN() from __xdp_reg_mem_model() syzkaller reports a warning in…

PriorityP419medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.25%
16.3th percentile
In the Linux kernel, the following vulnerability has been resolved: xdp: Remove WARN() from __xdp_reg_mem_model() syzkaller reports a warning in __xdp_reg_mem_model(). The warning occurs only if __mem_id_init_hash_table() returns an error. It returns the error in two cases: 1. memory allocation fails; 2. rhashtable_init() fails when some fields of rhashtable_params struct are not initialized properly. The second case cannot happen since there is a static const rhashtable_params struct with valid fields. So, warning is only triggered when there is a problem with memory allocation. Thus, there is no sense in using WARN() to handle this error and it can be safely removed. WARNING: CPU: 0 PID: 5065 at net/core/xdp.c:299 __xdp_reg_mem_model+0x2d9/0x650 net/core/xdp.c:299 CPU: 0 PID: 5065 Comm: syz-executor883 Not tainted 6.8.0-syzkaller-05271-gf99c5f563c17 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__xdp_reg_mem_model+0x2d9/0x650 net/core/xdp.c:299 Call Trace: xdp_reg_mem_model+0x22/0x40 net/core/xdp.c:344 xdp_test_run_setup net/bpf/test_run.c:188 [inline] bpf_test_run_xdp_live+0x365/0x1e90 net/bpf/test_run.c:377 bpf_prog_test_run_xdp+0x813/0x11b0 net/bpf/test_run.c:1267 bpf_prog_test_run+0x33a/0x3b0 kernel/bpf/syscall.c:4240 __sys_bpf+0x48d/0x810 kernel/bpf/syscall.c:5649 __do_sys_bpf kernel/bpf/syscall.c:5738 [inline] __se_sys_bpf kernel/bpf/syscall.c:5736 [inline] __x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5736 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 Found by Linux Verification Center (linuxtesting.org) with syzkaller.

Affected

25 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.98-1 (bookworm)linux 6.1.98-1 (bookworm)
debianlinux-6.1< linux 6.1.98-1 (bookworm)linux 6.1.98-1 (bookworm)
linuxlinux
linuxlinux>= 8d5d88527587516bd58ff0f3810f07c38e65e2be < 1095b8efbb13a6a5fa583ed373ee1ccab29da2d01095b8efbb13a6a5fa583ed373ee1ccab29da2d0
linuxlinux>= 8d5d88527587516bd58ff0f3810f07c38e65e2be < 1d3e3b3aa2cbe9bc7db9a7f8673a9fa6d2990d541d3e3b3aa2cbe9bc7db9a7f8673a9fa6d2990d54
linuxlinux>= 8d5d88527587516bd58ff0f3810f07c38e65e2be < 4e0c539ee265d5c6e7fa7d229cd4aa7bc01816e24e0c539ee265d5c6e7fa7d229cd4aa7bc01816e2
linuxlinux>= 8d5d88527587516bd58ff0f3810f07c38e65e2be < 14e51ea78b4ccacb7acb1346b9241bb790a2054c14e51ea78b4ccacb7acb1346b9241bb790a2054c
linuxlinux>= 8d5d88527587516bd58ff0f3810f07c38e65e2be < f92298b0467fd77edc4c1a2c3e48833e69840ec4f92298b0467fd77edc4c1a2c3e48833e69840ec4
linuxlinux>= 8d5d88527587516bd58ff0f3810f07c38e65e2be < 7e9f79428372c6eab92271390851be34ab26bfb47e9f79428372c6eab92271390851be34ab26bfb4
linuxlinux_kernel< 4.184.18
linuxlinux_kernel>= 0 < 5.10.221-15.10.221-1
linuxlinux_kernel>= 0 < 6.1.98-16.1.98-1
linuxlinux_kernel>= 0 < 6.9.8-16.9.8-1
linuxlinux_kernel>= 0 < 6.9.8-16.9.8-1
linuxlinux_kernel>= 0 < 5.15.0-121.1315.15.0-121.131
linuxlinux_kernel>= 0 < 6.8.0-48.486.8.0-48.48
linuxlinux_kernel>= 4.19 < 5.10.2215.10.221
linuxlinux_kernel>= 5.11 < 5.15.1625.15.162
linuxlinux_kernel>= 5.16 < 6.1.976.1.97
linuxlinux_kernel>= 6.2 < 6.6.376.6.37
linuxlinux_kernel>= 6.7 < 6.9.86.9.8
msrcazl3_kernel_6.6.35.1-5_on_azure_linux_3.0
msrcazl3_kernel_6.6.43.1-7_on_azure_linux_3.0
msrccbl2_kernel_5.15.160.1-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.162.2-1_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
osv5.5MEDIUM
vendor_ubuntu6.3MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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