Answer in brief
CVE-2024-49994 records a Medium severity (CVSS 5.5) vulnerability in block: fix integer overflow in BLKSECDISCARD. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2024-49994 records a Medium severity (CVSS 5.5) vulnerability in block: fix integer overflow in BLKSECDISCARD. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. 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 5.5. 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 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=44abff2c0b970ae3d310b97617525dc01f248d7c <8476f8428e8b48fd7a0e4258fa2a96a8f4468239 || >=44abff2c0b970ae3d310b97617525dc01f248d7c <a99bacb35c1416355eef957560e8fcac3a665549 || >=44abff2c0b970ae3d310b97617525dc01f248d7c <0842ddd83939eb4db940b9af7d39e79722bc41aa || >=44abff2c0b970ae3d310b97617525dc01f248d7c <6c9915fa9410cbb9bd75ee283c03120046c56d3d || >=44abff2c0b970ae3d310b97617525dc01f248d7c <697ba0b6ec4ae04afb67d3911799b5e2043b4455 | 8476f8428e8b48fd7a0e4258fa2a96a8f4468239, a99bacb35c1416355eef957560e8fcac3a665549, 0842ddd83939eb4db940b9af7d39e79722bc41aa, 6c9915fa9410cbb9bd75ee283c03120046c56d3d, 697ba0b6ec4ae04afb67d3911799b5e2043b4455 |
| Linux/Linuxgeneric | 5.19 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
Oct 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
In the Linux kernel, the following vulnerability has been resolved: block: fix integer overflow in BLKSECDISCARD I independently rediscovered commit 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155 block: fix overflow in blk_ioctl_discard() but for secure erase. Same problem: uint64_t r[2] = {512, 18446744073709551104ULL}; ioctl(fd, BLKSECDISCARD, r); will enter near infinite loop inside blkdev_issue_secure_erase(): a.out: attempt to access beyond end of device loop0: rw=5, sector=3399043073, nr_sectors = 1024 limit=2048 bio_check_eod: 3286214 callbacks suppressed
Quoted source text, attributed separately from HOL analysis.
CVSS is 5.5. 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 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=44abff2c0b970ae3d310b97617525dc01f248d7c <8476f8428e8b48fd7a0e4258fa2a96a8f4468239 || >=44abff2c0b970ae3d310b97617525dc01f248d7c <a99bacb35c1416355eef957560e8fcac3a665549 || >=44abff2c0b970ae3d310b97617525dc01f248d7c <0842ddd83939eb4db940b9af7d39e79722bc41aa || >=44abff2c0b970ae3d310b97617525dc01f248d7c <6c9915fa9410cbb9bd75ee283c03120046c56d3d || >=44abff2c0b970ae3d310b97617525dc01f248d7c <697ba0b6ec4ae04afb67d3911799b5e2043b4455 | 8476f8428e8b48fd7a0e4258fa2a96a8f4468239, a99bacb35c1416355eef957560e8fcac3a665549, 0842ddd83939eb4db940b9af7d39e79722bc41aa, 6c9915fa9410cbb9bd75ee283c03120046c56d3d, 697ba0b6ec4ae04afb67d3911799b5e2043b4455 |
| Linux/Linuxgeneric | 5.19 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
Oct 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
In the Linux kernel, the following vulnerability has been resolved: block: fix integer overflow in BLKSECDISCARD I independently rediscovered commit 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155 block: fix overflow in blk_ioctl_discard() but for secure erase. Same problem: uint64_t r[2] = {512, 18446744073709551104ULL}; ioctl(fd, BLKSECDISCARD, r); will enter near infinite loop inside blkdev_issue_secure_erase(): a.out: attempt to access beyond end of device loop0: rw=5, sector=3399043073, nr_sectors = 1024 limit=2048 bio_check_eod: 3286214 callbacks suppressed
Quoted source text, attributed separately from HOL analysis.