CVE-2022-49698
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2022
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
netfilter: use get_random_u32 instead of prandom
In the Linux kernel, the following vulnerability has been resolved: netfilter: use get_random_u32 instead of prandom bh might occur while updating per-cpu rnd_state from user context, ie. local_out path. BUG: using smp_processor_id() in preemptible [00000000] code: nginx/2725 caller is nft_ng_random_eval+0x24/0x54 [nft_numgen] Call Trace: check_preemption_disabled+0xde/0xe0 nft_ng_random_eval+0x24/0x54 [nft_numgen] Use the random driver instead, this also avoids need for local prandom state. Moreover, prandom now uses the random driver since d4150779e60f ("random32: use real rng for non-deterministic randomness"). Based on earlier patch from Pablo Neira.
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) |
|---|---|---|---|---|---|
| 978d8f9055c3a7c35db2ac99cd2580b993396e33 | affected | git | 15cc30ac2a8d7185f8ebf97dd1ddd90a7c79783b | Unavailable | None listed |
| 978d8f9055c3a7c35db2ac99cd2580b993396e33 | affected | git | d0906b0fffc9f19bc42708ca3e84e2089088386c | Unavailable | None listed |
| 978d8f9055c3a7c35db2ac99cd2580b993396e33 | affected | git | 6ce71f83f798be7e1ca68707fec449fbecb38852 | Unavailable | None listed |
| 978d8f9055c3a7c35db2ac99cd2580b993396e33 | affected | git | b1fd94e704571f98b21027340eecf821b2bdffba | 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) |
|---|---|---|---|---|---|
| 4.18 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.18 | Unavailable | None listed |
| 5.10.127 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.51 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.18.8 | unaffected | semver | Unavailable | 5.18.* | None listed |
| 5.19 | unaffected | original_commit_for_fix | Unavailable | * | None listed |