CVE-2026-53306
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
tty: hvc_iucv: fix off-by-one in number of supported devices
In the Linux kernel, the following vulnerability has been resolved: tty: hvc_iucv: fix off-by-one in number of supported devices MAX_HVC_IUCV_LINES == HVC_ALLOC_TTY_ADAPTERS == 8. This is the number of entries in: static struct hvc_iucv_private *hvc_iucv_table[MAX_HVC_IUCV_LINES]; Sometimes hvc_iucv_table[] is limited by: (a) if (num > hvc_iucv_devices) // for error detection or (b) for (i = 0; i < hvc_iucv_devices; i++) // in 2 places (so these 2 don't agree; second one appears to be correct to me.) hvc_iucv_devices can be 0..8. This is a counter. (c) if (hvc_iucv_devices > MAX_HVC_IUCV_LINES) If hvc_iucv_devices == 8, (a) allows the code to access hvc_iucv_table[8]. Oops.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 44a01d5ba8a4d543694461cd3e178cfa6b3f221b | affected | git | 3d3b89e6ab93bdd0efd45828bda6b0e61cc46dff | Unavailable | None listed |
| 44a01d5ba8a4d543694461cd3e178cfa6b3f221b | affected | git | 484357dff256c816d9466bda35eb765685e4dc86 | Unavailable | None listed |
| 44a01d5ba8a4d543694461cd3e178cfa6b3f221b | affected | git | 11207e42a332eb8bbcb9fe74df9edd2a807c5607 | Unavailable | None listed |
| 44a01d5ba8a4d543694461cd3e178cfa6b3f221b | affected | git | fed8b8f33a46db0ee2efdb000f4f630c86ed8ca4 | Unavailable | None listed |
| 44a01d5ba8a4d543694461cd3e178cfa6b3f221b | affected | git | a76511bc654819425d3b15e77b523d7f9d81f064 | Unavailable | None listed |
| 44a01d5ba8a4d543694461cd3e178cfa6b3f221b | affected | git | 3104a3f40feb107f77d7116ad9bf6c210ab7babf | Unavailable | None listed |
| 44a01d5ba8a4d543694461cd3e178cfa6b3f221b | affected | git | f1dc8e72de9aabe5d96767a4e97219ac26b79fe5 | Unavailable | None listed |
| 44a01d5ba8a4d543694461cd3e178cfa6b3f221b | affected | git | f2a880e802ad12d1e38039d1334fb1475d0f5241 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.29 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.29 | Unavailable | None listed |
| 5.10.258 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.209 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.175 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.141 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.91 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.33 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.10 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |