CVE-2024-46800
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2024
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
sch/netem: fix use after free in netem_dequeue
In the Linux kernel, the following vulnerability has been resolved: sch/netem: fix use after free in netem_dequeue If netem_dequeue() enqueues packet to inner qdisc and that qdisc returns __NET_XMIT_STOLEN. The packet is dropped but qdisc_tree_reduce_backlog() is not called to update the parent's q.qlen, leading to the similar use-after-free as Commit e04991a48dbaf382 ("netem: fix return value if duplicate enqueue fails") Commands to trigger KASAN UaF: ip link add type dummy ip link set lo up ip link set dummy0 up tc qdisc add dev lo parent root handle 1: drr tc filter add dev lo parent 1: basic classid 1:1 tc class add dev lo classid 1:1 drr tc qdisc add dev lo parent 1:1 handle 2: netem tc qdisc add dev lo parent 2: handle 3: drr tc filter add dev lo parent 3: basic classid 3:1 action mirred egress redirect dev dummy0 tc class add dev lo classid 3:1 drr ping -c1 -W0.01 localhost # Trigger bug tc class del dev lo classid 1:1 tc class add dev lo classid 1:1 drr ping -c1 -W0.01 localhost # UaF
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) |
|---|---|---|---|---|---|
| 50612537e9ab29693122fab20fc1eed235054ffe | affected | git | f0bddb4de043399f16d1969dad5ee5b984a64e7b | Unavailable | None listed |
| 50612537e9ab29693122fab20fc1eed235054ffe | affected | git | 295ad5afd9efc5f67b86c64fce28fb94e26dc4c9 | Unavailable | None listed |
| 50612537e9ab29693122fab20fc1eed235054ffe | affected | git | 98c75d76187944296068d685dfd8a1e9fd8c4fdc | Unavailable | None listed |
| 50612537e9ab29693122fab20fc1eed235054ffe | affected | git | 14f91ab8d391f249b845916820a56f42cf747241 | Unavailable | None listed |
| 50612537e9ab29693122fab20fc1eed235054ffe | affected | git | db2c235682913a63054e741fe4e19645fdf2d68e | Unavailable | None listed |
| 50612537e9ab29693122fab20fc1eed235054ffe | affected | git | dde33a9d0b80aae0c69594d1f462515d7ff1cb3d | Unavailable | None listed |
| 50612537e9ab29693122fab20fc1eed235054ffe | affected | git | 32008ab989ddcff1a485fa2b4906234c25dc5cd6 | Unavailable | None listed |
| 50612537e9ab29693122fab20fc1eed235054ffe | affected | git | 3b3a2a9c6349e25a025d2330f479bc33a6ccb54a | 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) |
|---|---|---|---|---|---|
| 3.3 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.3 | Unavailable | None listed |
| 4.19.322 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.284 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.226 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.167 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.110 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.51 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.10.10 | unaffected | semver | Unavailable | 6.10.* | None listed |
| 6.11 | unaffected | original_commit_for_fix | Unavailable | * | None listed |