CVE-2026-31405
published 2026-04-06CVE-2026-31405: In the Linux kernel, the following vulnerability has been resolved: media: dvb-net: fix OOB access in ULE extension header tables The…
PriorityP351critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.55%
42.3th percentile
In the Linux kernel, the following vulnerability has been resolved:
media: dvb-net: fix OOB access in ULE extension header tables
The ule_mandatory_ext_handlers[] and ule_optional_ext_handlers[] tables
in handle_one_ule_extension() are declared with 255 elements (valid
indices 0-254), but the index htype is derived from network-controlled
data as (ule_sndu_type & 0x00FF), giving a range of 0-255. When
htype equals 255, an out-of-bounds read occurs on the function pointer
table, and the OOB value may be called as a function pointer.
Add a bounds check on htype against the array size before either table
is accessed. Out-of-range values now cause the SNDU to be discarded.
Affected
20 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.19.10-1 (forky) | linux 6.19.10-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e51238718217c4abdb3ccc3b0c0cde265c7ec629 | e51238718217c4abdb3ccc3b0c0cde265c7ec629 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b2bd2ee73b697c177157bba534e1b1064c2e66a0 | b2bd2ee73b697c177157bba534e1b1064c2e66a0 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 29ef43ceb121d67b87f4cbb08439e4e9e732eff8 | 29ef43ceb121d67b87f4cbb08439e4e9e732eff8 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1a6da3dbb9985d00743073a1cc1f96e59f5abc30 | 1a6da3dbb9985d00743073a1cc1f96e59f5abc30 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 145e50c2c700fa52b840df7bab206043997dd18e | 145e50c2c700fa52b840df7bab206043997dd18e |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 8bde543d2a5f935ba2a6a6325a2e02f8a9256fbe | 8bde543d2a5f935ba2a6a6325a2e02f8a9256fbe |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < f2b65dcb78c8990e4c68a906627433be1fe38a92 | f2b65dcb78c8990e4c68a906627433be1fe38a92 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 24d87712727a5017ad142d63940589a36cd25647 | 24d87712727a5017ad142d63940589a36cd25647 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.19.10-1 | 6.19.10-1 |
| linux | linux_kernel | >= 2.6.12.1 < 5.10.253 | 5.10.253 |
| linux | linux_kernel | >= 5.11 < 5.15.203 | 5.15.203 |
| linux | linux_kernel | >= 5.16 < 6.1.167 | 6.1.167 |
| linux | linux_kernel | >= 6.13 < 6.18.19 | 6.18.19 |
| linux | linux_kernel | >= 6.19 < 6.19.9 | 6.19.9 |
| linux | linux_kernel | >= 6.2 < 6.6.130 | 6.6.130 |
| linux | linux_kernel | >= 6.7 < 6.12.78 | 6.12.78 |
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GHSA
GHSA-qqxp-95qg-gqxr: In the Linux kernel, the following vulnerability has been resolved:
media: dvb-net: fix OOB access in ULE extension header tables
The ule_mandatory_
ghsa_unreviewed·2026-04-06
CVE-2026-31405 GHSA-qqxp-95qg-gqxr: In the Linux kernel, the following vulnerability has been resolved:
media: dvb-net: fix OOB access in ULE extension header tables
The ule_mandatory_
In the Linux kernel, the following vulnerability has been resolved:
media: dvb-net: fix OOB access in ULE extension header tables
The ule_mandatory_ext_handlers[] and ule_optional_ext_handlers[] tables
in handle_one_ule_extension() are declared with 255 elements (valid
indices 0-254), but the index htype is derived from network-controlled
data as (ule_sndu_type & 0x00FF), giving a range of 0-255. When
htype equals 255, an out-of-bounds read occurs on the function pointer
table, and the OOB value may be called as a function pointer.
Add a bounds check on htype against the array size before either table
is accessed. Out-of-range values now cause the SNDU to be discarded.
OSV
CVE-2026-31405: In the Linux kernel, the following vulnerability has been resolved: media: dvb-net: fix OOB access in ULE extension header tables The ule_mandatory_ex
osv·2026-04-06
CVE-2026-31405 CVE-2026-31405: In the Linux kernel, the following vulnerability has been resolved: media: dvb-net: fix OOB access in ULE extension header tables The ule_mandatory_ex
In the Linux kernel, the following vulnerability has been resolved: media: dvb-net: fix OOB access in ULE extension header tables The ule_mandatory_ext_handlers[] and ule_optional_ext_handlers[] tables in handle_one_ule_extension() are declared with 255 elements (valid indices 0-254), but the index htype is derived from network-controlled data as (ule_sndu_type & 0x00FF), giving a range of 0-255. When htype equals 255, an out-of-bounds read occurs on the function pointer table, and the OOB value may be called as a function pointer. Add a bounds check on htype against the array size before either table is accessed. Out-of-range values now cause the SNDU to be discarded.
Red Hat
kernel: media: dvb-net: fix OOB access in ULE extension header tables
vendor_redhat·2026-04-06
CVE-2026-31405 CWE-1285 kernel: media: dvb-net: fix OOB access in ULE extension header tables
kernel: media: dvb-net: fix OOB access in ULE extension header tables
In the Linux kernel, the following vulnerability has been resolved:
media: dvb-net: fix OOB access in ULE extension header tables
The ule_mandatory_ext_handlers[] and ule_optional_ext_handlers[] tables
in handle_one_ule_extension() are declared with 255 elements (valid
indices 0-254), but the index htype is derived from network-controlled
data as (ule_sndu_type & 0x00FF), giving a range of 0-255. When
htype equals 255, an out-of-bounds read occurs on the function pointer
table, and the OOB value may be called as a function pointer.
Add a bounds check on htype against the array size before either table
is accessed. Out-of-range values now cause the SNDU to be discarded.
A flaw was found in the Linux kernel's dvb-net com
Debian
CVE-2026-31405: linux - In the Linux kernel, the following vulnerability has been resolved: media: dvb-...
vendor_debian·2026
CVE-2026-31405 CVE-2026-31405: linux - In the Linux kernel, the following vulnerability has been resolved: media: dvb-...
In the Linux kernel, the following vulnerability has been resolved: media: dvb-net: fix OOB access in ULE extension header tables The ule_mandatory_ext_handlers[] and ule_optional_ext_handlers[] tables in handle_one_ule_extension() are declared with 255 elements (valid indices 0-254), but the index htype is derived from network-controlled data as (ule_sndu_type & 0x00FF), giving a range of 0-255. When htype equals 255, an out-of-bounds read occurs on the function pointer table, and the OOB value may be called as a function pointer. Add a bounds check on htype against the array size before either table is accessed. Out-of-range values now cause the SNDU to be discarded.
Scope: local
bookworm: open
bullseye: open
forky: resolved (fixed in 6.19.10-1)
sid: resolved (fixed in 6.19.10-1)
trixie:
No detection rules found.
No public exploits indexed.
Wiz
CVE-2026-31405 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 5.3
CVE-2026-31405 [MEDIUM] CVE-2026-31405 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-31405 :
Linux Debian vulnerability analysis and mitigation
In the Linux kernel, the following vulnerability has been resolved:
media: dvb-net: fix OOB access in ULE extension header tables
The ule_mandatory_ext_handlers[] and ule_optional_ext_handlers[] tables
in handle_one_ule_extension() are declared with 255 elements (valid
indices 0-254), but the index htype is derived from network-controlled
data as (ule_sndu_type & 0x00FF), giving a range of 0-255. When
htype equals 255, an out-of-bounds read occurs on the function pointer
table, and the OOB value may be called as a function pointer.
Add a bounds check on htype against the array size before either table
is accessed. Out-of-range values now cause the SNDU to be discarded.
Source : NVD
Published April 6, 2026
CNA Sc
Bugzilla
CVE-2026-31405 kernel: media: dvb-net: fix OOB access in ULE extension header tables
bugzilla·2026-04-06
CVE-2026-31405 CVE-2026-31405 kernel: media: dvb-net: fix OOB access in ULE extension header tables
CVE-2026-31405 kernel: media: dvb-net: fix OOB access in ULE extension header tables
In the Linux kernel, the following vulnerability has been resolved:
media: dvb-net: fix OOB access in ULE extension header tables
The ule_mandatory_ext_handlers[] and ule_optional_ext_handlers[] tables
in handle_one_ule_extension() are declared with 255 elements (valid
indices 0-254), but the index htype is derived from network-controlled
data as (ule_sndu_type & 0x00FF), giving a range of 0-255. When
htype equals 255, an out-of-bounds read occurs on the function pointer
table, and the OOB value may be called as a function pointer.
Add a bounds check on htype against the array size before either table
is accessed. Out-of-range values now cause the SNDU to be discarded.
Discussion:
Upstream advisory:
https://git.kernel.org/stable/c/145e50c2c700fa52b840df7bab206043997dd18ehttps://git.kernel.org/stable/c/1a6da3dbb9985d00743073a1cc1f96e59f5abc30https://git.kernel.org/stable/c/24d87712727a5017ad142d63940589a36cd25647https://git.kernel.org/stable/c/29ef43ceb121d67b87f4cbb08439e4e9e732eff8https://git.kernel.org/stable/c/8bde543d2a5f935ba2a6a6325a2e02f8a9256fbehttps://git.kernel.org/stable/c/b2bd2ee73b697c177157bba534e1b1064c2e66a0https://git.kernel.org/stable/c/e51238718217c4abdb3ccc3b0c0cde265c7ec629https://git.kernel.org/stable/c/f2b65dcb78c8990e4c68a906627433be1fe38a92
2026-04-06
Published