Answer in brief
CVE-2024-46800 records a Unknown severity vulnerability in sch/netem: fix use after free in netem_dequeue. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). 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-2024-46800 records a Unknown severity vulnerability in sch/netem: fix use after free in netem_dequeue. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. 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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=50612537e9ab29693122fab20fc1eed235054ffe <f0bddb4de043399f16d1969dad5ee5b984a64e7b || >=50612537e9ab29693122fab20fc1eed235054ffe <295ad5afd9efc5f67b86c64fce28fb94e26dc4c9 || >=50612537e9ab29693122fab20fc1eed235054ffe <98c75d76187944296068d685dfd8a1e9fd8c4fdc || >=50612537e9ab29693122fab20fc1eed235054ffe <14f91ab8d391f249b845916820a56f42cf747241 || >=50612537e9ab29693122fab20fc1eed235054ffe <db2c235682913a63054e741fe4e19645fdf2d68e || >=50612537e9ab29693122fab20fc1eed235054ffe <dde33a9d0b80aae0c69594d1f462515d7ff1cb3d || >=50612537e9ab29693122fab20fc1eed235054ffe <32008ab989ddcff1a485fa2b4906234c25dc5cd6 || >=50612537e9ab29693122fab20fc1eed235054ffe <3b3a2a9c6349e25a025d2330f479bc33a6ccb54a | f0bddb4de043399f16d1969dad5ee5b984a64e7b, 295ad5afd9efc5f67b86c64fce28fb94e26dc4c9, 98c75d76187944296068d685dfd8a1e9fd8c4fdc, 14f91ab8d391f249b845916820a56f42cf747241, db2c235682913a63054e741fe4e19645fdf2d68e, dde33a9d0b80aae0c69594d1f462515d7ff1cb3d, 32008ab989ddcff1a485fa2b4906234c25dc5cd6, 3b3a2a9c6349e25a025d2330f479bc33a6ccb54a |
| Linux/Linuxgeneric | 3.3 | Not reported |
Published upstream
Sep 18, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. 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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=50612537e9ab29693122fab20fc1eed235054ffe <f0bddb4de043399f16d1969dad5ee5b984a64e7b || >=50612537e9ab29693122fab20fc1eed235054ffe <295ad5afd9efc5f67b86c64fce28fb94e26dc4c9 || >=50612537e9ab29693122fab20fc1eed235054ffe <98c75d76187944296068d685dfd8a1e9fd8c4fdc || >=50612537e9ab29693122fab20fc1eed235054ffe <14f91ab8d391f249b845916820a56f42cf747241 || >=50612537e9ab29693122fab20fc1eed235054ffe <db2c235682913a63054e741fe4e19645fdf2d68e || >=50612537e9ab29693122fab20fc1eed235054ffe <dde33a9d0b80aae0c69594d1f462515d7ff1cb3d || >=50612537e9ab29693122fab20fc1eed235054ffe <32008ab989ddcff1a485fa2b4906234c25dc5cd6 || >=50612537e9ab29693122fab20fc1eed235054ffe <3b3a2a9c6349e25a025d2330f479bc33a6ccb54a | f0bddb4de043399f16d1969dad5ee5b984a64e7b, 295ad5afd9efc5f67b86c64fce28fb94e26dc4c9, 98c75d76187944296068d685dfd8a1e9fd8c4fdc, 14f91ab8d391f249b845916820a56f42cf747241, db2c235682913a63054e741fe4e19645fdf2d68e, dde33a9d0b80aae0c69594d1f462515d7ff1cb3d, 32008ab989ddcff1a485fa2b4906234c25dc5cd6, 3b3a2a9c6349e25a025d2330f479bc33a6ccb54a |
| Linux/Linuxgeneric | 3.3 | Not reported |
Published upstream
Sep 18, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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
Quoted source text, attributed separately from HOL analysis.