CVE-2025-38586High· 7.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fix fp initialization for exception boundary In the ARM64 BPF JIT when prog->aux->exception_boundary is set for a BPF program, find_used_callee_regs() is n…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
7.8 → 4.4
high → medium
0.2% → 0.2%
4.4 → 7.8
medium → high
In the Linux kernel, the following vulnerability has been resolved:
bpf, arm64: Fix fp initialization for exception boundary
In the ARM64 BPF JIT when prog->aux->exception_boundary is set for a BPF
program, find_used_callee_regs() is not called because for a program
acting as exception boundary, all callee saved registers are saved.
find_used_callee_regs() sets ctx->fp_used = true; when it sees FP
being used in any of the instructions.
For programs acting as exception boundary, ctx->fp_used remains false even if frame pointer is used by the program and therefore, FP is not set-up for such programs in the prologue. This can cause the kernel to crash due to a pagefault.
Fix it by setting ctx->fp_used = true for exception boundary programs as fp is always saved in such programs.
linux_kernel >= 6.12, < 6.12.42linux_kernel >= 6.13, < 6.15.10linux_kernel >= 6.16, < 6.16.1Upgrade past the affected range:
linux_kernel 6.16.1Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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CVE-2020-11609Medium· 4.3An issue was discovered in the stv06xx subsystem in the Linux kernel before 5.6.1
CVE-2020-11494Medium· 4.4An issue was discovered in slc_bump in drivers/net/can/slcan.c in the Linux kernel 3.16 through 5.6.2
CVE-2019-16089Medium· 4.1An issue was discovered in the Linux kernel through 5.2.13
CVE-2020-36311Medium· 5.5An issue was discovered in the Linux kernel before 5.9
CVE-2022-0500High· 7.8A flaw was found in unrestricted eBPF usage by the BPF_BTF_LOAD, leading to a possible out-of-bounds memory write in the Linux kernel’s BPF subsystem due to the way a user loads BTF