In the Linux kernel, the following vulnerability has been resolved:
bpf: handle jset (if a & b ...) as a jump in CFG computation
BPF_JSET is a conditional jump and currently verifier.c:can_jump()
does not know about that. This can lead to incorrect live registers
and SCC computation.
E.g. in the following example:
1: r0 = 1;
2: r2 = 2;
3: if r1 & 0x7 goto +1;
4: exit;
5: r0 = r2;
6: exit;
W/o this fix insn_successors(3) will return only (4), a jump to (5)
would be missed and r2 won't be marked as alive at (3).
bpf: handle jset (if a & b ...) as a jump in CFG computation
BPF_JSET is a conditional jump and currently verifier.c:can_jump()
does not know about that. This can lead to incorrect live registers
and SCC computation.
E.g. in the following example:
1: r0 = 1;
2: r2 = 2;
3: if r1 & 0x7 goto +1;
4: exit;
5: r0 = r2;
6: exit;
W/o this fix insn_successors(3) will return only (4), a jump to (5)
would be missed and r2 won't be marked as alive at (3).
Metrics
Affected Vendors & Products
Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-27932 | In the Linux kernel, the following vulnerability has been resolved: bpf: handle jset (if a & b ...) as a jump in CFG computation BPF_JSET is a conditional jump and currently verifier.c:can_jump() does not know about that. This can lead to incorrect live registers and SCC computation. E.g. in the following example: 1: r0 = 1; 2: r2 = 2; 3: if r1 & 0x7 goto +1; 4: exit; 5: r0 = r2; 6: exit; W/o this fix insn_successors(3) will return only (4), a jump to (5) would be missed and r2 won't be marked as alive at (3). |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Wed, 26 Nov 2025 17:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | NVD-CWE-noinfo | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Thu, 21 Aug 2025 12:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux linux Kernel |
|
| Vendors & Products |
Linux
Linux linux Kernel |
Wed, 20 Aug 2025 00:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
cvssV3_1
|
Tue, 19 Aug 2025 17:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In the Linux kernel, the following vulnerability has been resolved: bpf: handle jset (if a & b ...) as a jump in CFG computation BPF_JSET is a conditional jump and currently verifier.c:can_jump() does not know about that. This can lead to incorrect live registers and SCC computation. E.g. in the following example: 1: r0 = 1; 2: r2 = 2; 3: if r1 & 0x7 goto +1; 4: exit; 5: r0 = r2; 6: exit; W/o this fix insn_successors(3) will return only (4), a jump to (5) would be missed and r2 won't be marked as alive at (3). | |
| Title | bpf: handle jset (if a & b ...) as a jump in CFG computation | |
| References |
|
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2025-09-29T05:54:41.668Z
Reserved: 2025-04-16T04:51:24.028Z
Link: CVE-2025-38607
No data.
Status : Analyzed
Published: 2025-08-19T17:15:39.070
Modified: 2025-11-26T17:40:41.620
Link: CVE-2025-38607
OpenCVE Enrichment
Updated: 2025-08-21T12:31:55Z
EUVD