Answer in brief
CVE-2026-46149 records a High severity (CVSS 7.1) vulnerability in scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 <d3cc9d490c207d57a289054397349f6f8c90354e || >=c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 <db0a4759d62cad4ff891e2d81ae4be73bb57f4a4 || >=c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 <12f2201a56957ba020392223a7393a5eba080c1b || >=c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 <1f678d13e939f91840cb1ebe9b88544923539d3c || >=c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 <72cc5ea7ef32bb5fa38bf0dd2e56fcd73aa8c89e || >=c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 <00d91bfdce5033f5d9b4915638ae9b0553848b5d || >=c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 <e501154f9d82c95d2719bcbbaf679d8fd3226ef7 || >=c66ac9db8d4ad9994a02b3e933ea2ccc643e1fe5 <772a896a56e0e3ef9424a025cec9176f9d8f4552 | d3cc9d490c207d57a289054397349f6f8c90354e, db0a4759d62cad4ff891e2d81ae4be73bb57f4a4, 12f2201a56957ba020392223a7393a5eba080c1b, 1f678d13e939f91840cb1ebe9b88544923539d3c, 72cc5ea7ef32bb5fa38bf0dd2e56fcd73aa8c89e, 00d91bfdce5033f5d9b4915638ae9b0553848b5d, e501154f9d82c95d2719bcbbaf679d8fd3226ef7, 772a896a56e0e3ef9424a025cec9176f9d8f4552 |
| Linux/Linuxgeneric | 2.6.38 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
May 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: scsi: target: configfs: Bound snprintf() return in tg_pt_gp_members_show() target_tg_pt_gp_members_show() formats LUN paths with snprintf() into a 256-byte stack buffer, then will memcpy() cur_len bytes from that buffer. snprintf() returns the length the output would have had, which can exceed the buffer size when the fabric WWN is long because iSCSI IQN names can be up to 223 bytes. The check at the memcpy() site only guards the destination page write, not the source read, so memcpy() will read past the stack buffer and copy adjacent stack contents to the sysfs reader, which when CONFIG_FORTIFY_SOURCE is enabled, fortify_panic() will be triggered. Commit 27e06650a5ea ("scsi: target: target_core_configfs: Add length check to avoid buffer overflow") added the same bound to the target_lu_gp_members_show() but the tg_pt_gp variant was missed so resolve that here.
Quoted source text, attributed separately from HOL analysis.