cbcvebase.
CVE-2024-50203
published 2024-11-08

CVE-2024-50203: In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fix address emission with tag-based KASAN enabled When BPF_TRAMP_F_CALL_ORIG is…

PriorityP340high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.23%
14.1th percentile
In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fix address emission with tag-based KASAN enabled When BPF_TRAMP_F_CALL_ORIG is enabled, the address of a bpf_tramp_image struct on the stack is passed during the size calculation pass and an address on the heap is passed during code generation. This may cause a heap buffer overflow if the heap address is tagged because emit_a64_mov_i64() will emit longer code than it did during the size calculation pass. The same problem could occur without tag-based KASAN if one of the 16-bit words of the stack address happened to be all-ones during the size calculation pass. Fix the problem by assuming the worst case (4 instructions) when calculating the size of the bpf_tramp_image address emission.

Affected

15 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.11.6-1 (forky)linux 6.11.6-1 (forky)
linuxlinux
linuxlinux
linuxlinux>= 077149478497b2f00ff4fd9da2c892defa6418d8 < 9e80f366ebfdfafc685fe83a84c34f7ef01cbe889e80f366ebfdfafc685fe83a84c34f7ef01cbe88
linuxlinux>= 19d3c179a37730caf600a97fed3794feac2b197b < 7db1a2121f3c7903b8e397392beec563c3d009507db1a2121f3c7903b8e397392beec563c3d00950
linuxlinux>= 19d3c179a37730caf600a97fed3794feac2b197b < a552e2ef5fd1a6c78267cd4ec5a9b49aa11bbb1ca552e2ef5fd1a6c78267cd4ec5a9b49aa11bbb1c
linuxlinux>= 6.10.3 < 6.116.11
linuxlinux>= d9664e6ff040798a46cdc5d401064f55b8676c83 < f521c2a0c0c4585f36d912bf62c852b88682c4f2f521c2a0c0c4585f36d912bf62c852b88682c4f2
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.11.6-16.11.6-1
linuxlinux_kernel>= 0 < 6.11.6-16.11.6-1
linuxlinux_kernel>= 0 < 6.8.0-58.606.8.0-58.60
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 6.10.3 < 6.116.11
linuxlinux_kernel>= 6.11 < 6.11.66.11.6

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian7.8LOW
vendor_redhat7.8HIGH
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