CVE - CVE-2024-47734

CVE-ID
CVE-2024-47734	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: bonding: Fix unnecessary warnings and logs from bond_xdp_get_xmit_slave() syzbot reported a WARNING in bond_xdp_get_xmit_slave. To reproduce this[1], one bond device (bond1) has xdpdrv, which increases bpf_master_redirect_enabled_key. Another bond device (bond0) which is unsupported by XDP but its slave (veth3) has xdpgeneric that returns XDP_TX. This triggers WARN_ON_ONCE() from the xdp_master_redirect(). To reduce unnecessary warnings and improve log management, we need to delete the WARN_ON_ONCE() and add ratelimit to the netdev_err(). [1] Steps to reproduce: # Needs tx_xdp with return XDP_TX; ip l add veth0 type veth peer veth1 ip l add veth3 type veth peer veth4 ip l add bond0 type bond mode 6 # BOND_MODE_ALB, unsupported by XDP ip l add bond1 type bond # BOND_MODE_ROUNDROBIN by default ip l set veth0 master bond1 ip l set bond1 up # Increases bpf_master_redirect_enabled_key ip l set dev bond1 xdpdrv object tx_xdp.o section xdp_tx ip l set veth3 master bond0 ip l set bond0 up ip l set veth4 up # Triggers WARN_ON_ONCE() from the xdp_master_redirect() ip l set veth3 xdpgeneric object tx_xdp.o section xdp_tx
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/0cbfd45fbcf0cb26d85c981b91c62fe73cdee01c URL:https://git.kernel.org/stable/c/0cbfd45fbcf0cb26d85c981b91c62fe73cdee01c MISC:https://git.kernel.org/stable/c/57b5fba55c6f8b1d83312a34bd656166fcd95658 URL:https://git.kernel.org/stable/c/57b5fba55c6f8b1d83312a34bd656166fcd95658 MISC:https://git.kernel.org/stable/c/6b64197b4bf1a5703a8b105367baf20f1e627a75 URL:https://git.kernel.org/stable/c/6b64197b4bf1a5703a8b105367baf20f1e627a75 MISC:https://git.kernel.org/stable/c/72e2c0825a480e19ee999cee9d018850d38c82b9 URL:https://git.kernel.org/stable/c/72e2c0825a480e19ee999cee9d018850d38c82b9 MISC:https://git.kernel.org/stable/c/c1be35e774f8ed415e01209fddd963c5a74e8e9f URL:https://git.kernel.org/stable/c/c1be35e774f8ed415e01209fddd963c5a74e8e9f MISC:https://git.kernel.org/stable/c/ccd3e6ff05e5236d1b9535f23f3e6622e0bb32b8 URL:https://git.kernel.org/stable/c/ccd3e6ff05e5236d1b9535f23f3e6622e0bb32b8
Assigning CNA
kernel.org
Date Record Created
20240930	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240930)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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