cbcvebase.
CVE-2024-58100
published 2025-05-05

CVE-2024-58100: In the Linux kernel, the following vulnerability has been resolved: bpf: check changes_pkt_data property for extension programs When processing calls to global…

PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.17%
6.7th percentile
In the Linux kernel, the following vulnerability has been resolved: bpf: check changes_pkt_data property for extension programs When processing calls to global sub-programs, verifier decides whether to invalidate all packet pointers in current state depending on the changes_pkt_data property of the global sub-program. Because of this, an extension program replacing a global sub-program must be compatible with changes_pkt_data property of the sub-program being replaced. This commit: - adds changes_pkt_data flag to struct bpf_prog_aux: - this flag is set in check_cfg() for main sub-program; - in jit_subprogs() for other sub-programs; - modifies bpf_check_attach_btf_id() to check changes_pkt_data flag; - moves call to check_attach_btf_id() after the call to check_cfg(), because it needs changes_pkt_data flag to be set: bpf_check: ... ... - check_attach_btf_id resolve_pseudo_ldimm64 resolve_pseudo_ldimm64 --> bpf_prog_is_offloaded bpf_prog_is_offloaded check_cfg check_cfg + check_attach_btf_id ... ... The following fields are set by check_attach_btf_id(): - env->ops - prog->aux->attach_btf_trace - prog->aux->attach_func_name - prog->aux->attach_func_proto - prog->aux->dst_trampoline - prog->aux->mod - prog->aux->saved_dst_attach_type - prog->aux->saved_dst_prog_type - prog->expected_attach_type Neither of these fields are used by resolve_pseudo_ldimm64() or bpf_prog_offload_verifier_prep() (for netronome and netdevsim drivers), so the reordering is safe.

Affected

16 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.12.25-1 (forky)linux 6.12.25-1 (forky)
linuxlinux
linuxlinux>= be8704ff07d2374bcc5c675526f95e70c6459683 < 7197fc4acdf238ec8ad06de5a8235df0c1f9c7d77197fc4acdf238ec8ad06de5a8235df0c1f9c7d7
linuxlinux>= be8704ff07d2374bcc5c675526f95e70c6459683 < 3846e2bea565ee1c5195dcc625fda9868fb0e3b33846e2bea565ee1c5195dcc625fda9868fb0e3b3
linuxlinux>= be8704ff07d2374bcc5c675526f95e70c6459683 < 81f6d0530ba031b5f038a091619bf2ff2956885281f6d0530ba031b5f038a091619bf2ff29568852
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.12.25-16.12.25-1
linuxlinux_kernel>= 0 < 6.12.25-16.12.25-1
linuxlinux_kernel>= 5.6 < 6.6.906.6.90
linuxlinux_kernel>= 6.7 < 6.12.256.12.25
msrcazl3_kernel_6.6.85.1-4_on_azure_linux_3.0
msrcazl3_kernel_6.6.92.2-1_on_azure_linux_3.0
msrccbl2_kernel_5.15.186.1-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.200.1-1_on_cbl_mariner_2.0
msrccbl2_kernel_5.15.202.1-1_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
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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