CVE-2022-48755
IBM PowerPC P64 BPF Illegal Instruction Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06 Johan reported the below crash with test_bpf on ppc64 e5500: test_bpf: #296 ALU_END_FROM_LE 64: 0x0123456789abcdef -> 0x67452301 jited:1 Oops: Exception in kernel mode, sig: 4 [#1] BE PAGE_SIZE=4K SMP NR_CPUS=24 QEMU e500 Modules linked in: test_bpf(+) CPU: 0 PID: 76 Comm: insmod Not tainted 5.14.0-03771-g98c2059e008a-dirty #1 NIP: 8000000000061c3c LR: 80000000006dea64 CTR: 8000000000061c18 REGS: c0000000032d3420 TRAP: 0700 Not tainted (5.14.0-03771-g98c2059e008a-dirty) MSR: 0000000080089000 <EE,ME> CR: 88002822 XER: 20000000 IRQMASK: 0 <...> NIP [8000000000061c3c] 0x8000000000061c3c LR [80000000006dea64] .__run_one+0x104/0x17c [test_bpf] Call Trace: .__run_one+0x60/0x17c [test_bpf] (unreliable) .test_bpf_init+0x6a8/0xdc8 [test_bpf] .do_one_initcall+0x6c/0x28c .do_init_module+0x68/0x28c .load_module+0x2460/0x2abc .__do_sys_init_module+0x120/0x18c .system_call_exception+0x110/0x1b8 system_call_common+0xf0/0x210 --- interrupt: c00 at 0x101d0acc <...> ---[ end trace 47b2bf19090bb3d0 ]--- Illegal instruction The illegal instruction turned out to be 'ldbrx' emitted for BPF_FROM_[L|B]E, which was only introduced in ISA v2.06. Guard use of the same and implement an alternative approach for older processors.
INFO
Published Date :
June 20, 2024, 12:15 p.m.
Last Modified :
Jan. 6, 2025, 9:44 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-48755.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-48755 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-48755 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Jan. 06, 2025
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.8 up to (excluding) 5.10.96 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.16.5 *cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/129c71829d7f46423d95c19e8d87ce956d4c6e1c No Types Assigned https://git.kernel.org/stable/c/129c71829d7f46423d95c19e8d87ce956d4c6e1c Patch Changed Reference Type https://git.kernel.org/stable/c/129c71829d7f46423d95c19e8d87ce956d4c6e1c No Types Assigned https://git.kernel.org/stable/c/129c71829d7f46423d95c19e8d87ce956d4c6e1c Patch Changed Reference Type https://git.kernel.org/stable/c/3bfbc00587dc883eaed383558ae512a351c2cd09 No Types Assigned https://git.kernel.org/stable/c/3bfbc00587dc883eaed383558ae512a351c2cd09 Patch Changed Reference Type https://git.kernel.org/stable/c/3bfbc00587dc883eaed383558ae512a351c2cd09 No Types Assigned https://git.kernel.org/stable/c/3bfbc00587dc883eaed383558ae512a351c2cd09 Patch Changed Reference Type https://git.kernel.org/stable/c/3f5f766d5f7f95a69a630da3544a1a0cee1cdddf No Types Assigned https://git.kernel.org/stable/c/3f5f766d5f7f95a69a630da3544a1a0cee1cdddf Patch Changed Reference Type https://git.kernel.org/stable/c/3f5f766d5f7f95a69a630da3544a1a0cee1cdddf No Types Assigned https://git.kernel.org/stable/c/3f5f766d5f7f95a69a630da3544a1a0cee1cdddf Patch Changed Reference Type https://git.kernel.org/stable/c/aaccfeeee1630b155e8ff0d6c449d3de1ef86e73 No Types Assigned https://git.kernel.org/stable/c/aaccfeeee1630b155e8ff0d6c449d3de1ef86e73 Patch Changed Reference Type https://git.kernel.org/stable/c/aaccfeeee1630b155e8ff0d6c449d3de1ef86e73 No Types Assigned https://git.kernel.org/stable/c/aaccfeeee1630b155e8ff0d6c449d3de1ef86e73 Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/129c71829d7f46423d95c19e8d87ce956d4c6e1c Added Reference https://git.kernel.org/stable/c/3bfbc00587dc883eaed383558ae512a351c2cd09 Added Reference https://git.kernel.org/stable/c/3f5f766d5f7f95a69a630da3544a1a0cee1cdddf Added Reference https://git.kernel.org/stable/c/aaccfeeee1630b155e8ff0d6c449d3de1ef86e73 -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 20, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06 Johan reported the below crash with test_bpf on ppc64 e5500: test_bpf: #296 ALU_END_FROM_LE 64: 0x0123456789abcdef -> 0x67452301 jited:1 Oops: Exception in kernel mode, sig: 4 [#1] BE PAGE_SIZE=4K SMP NR_CPUS=24 QEMU e500 Modules linked in: test_bpf(+) CPU: 0 PID: 76 Comm: insmod Not tainted 5.14.0-03771-g98c2059e008a-dirty #1 NIP: 8000000000061c3c LR: 80000000006dea64 CTR: 8000000000061c18 REGS: c0000000032d3420 TRAP: 0700 Not tainted (5.14.0-03771-g98c2059e008a-dirty) MSR: 0000000080089000 <EE,ME> CR: 88002822 XER: 20000000 IRQMASK: 0 <...> NIP [8000000000061c3c] 0x8000000000061c3c LR [80000000006dea64] .__run_one+0x104/0x17c [test_bpf] Call Trace: .__run_one+0x60/0x17c [test_bpf] (unreliable) .test_bpf_init+0x6a8/0xdc8 [test_bpf] .do_one_initcall+0x6c/0x28c .do_init_module+0x68/0x28c .load_module+0x2460/0x2abc .__do_sys_init_module+0x120/0x18c .system_call_exception+0x110/0x1b8 system_call_common+0xf0/0x210 --- interrupt: c00 at 0x101d0acc <...> ---[ end trace 47b2bf19090bb3d0 ]--- Illegal instruction The illegal instruction turned out to be 'ldbrx' emitted for BPF_FROM_[L|B]E, which was only introduced in ISA v2.06. Guard use of the same and implement an alternative approach for older processors. Added Reference kernel.org https://git.kernel.org/stable/c/129c71829d7f46423d95c19e8d87ce956d4c6e1c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/3bfbc00587dc883eaed383558ae512a351c2cd09 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/aaccfeeee1630b155e8ff0d6c449d3de1ef86e73 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/3f5f766d5f7f95a69a630da3544a1a0cee1cdddf [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-48755 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-48755
weaknesses.