Answer in brief
CVE-2022-49667 records a High severity (CVSS 7.8) vulnerability in net: bonding: fix use-after-free after 802.3ad slave unbind. 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.
CVSS is 7.8. 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 | >=0622cab0341cac6b30da177b0faa39fae0680e71 <a853b7a3a9fd1d74a4ccdd9cd73512b7dace2f1e || >=0622cab0341cac6b30da177b0faa39fae0680e71 <b90ac60303063a43e17dd4aec159067599d255e6 || >=0622cab0341cac6b30da177b0faa39fae0680e71 <f162f7c348fa2a5555bafdb5cc890b89b221e69c || >=0622cab0341cac6b30da177b0faa39fae0680e71 <893825289ba840afd86bfffcb6f7f363c73efff8 || >=0622cab0341cac6b30da177b0faa39fae0680e71 <63b2fe509f69b90168a75e04e14573dccf7984e6 || >=0622cab0341cac6b30da177b0faa39fae0680e71 <ef0af7d08d26c5333ff4944a559279464edf6f15 || >=0622cab0341cac6b30da177b0faa39fae0680e71 <2765749def4765c5052a4c66445cf4c96fcccdbc || >=0622cab0341cac6b30da177b0faa39fae0680e71 <050133e1aa2cb49bb17be847d48a4431598ef562 | a853b7a3a9fd1d74a4ccdd9cd73512b7dace2f1e, b90ac60303063a43e17dd4aec159067599d255e6, f162f7c348fa2a5555bafdb5cc890b89b221e69c, 893825289ba840afd86bfffcb6f7f363c73efff8, 63b2fe509f69b90168a75e04e14573dccf7984e6, ef0af7d08d26c5333ff4944a559279464edf6f15, 2765749def4765c5052a4c66445cf4c96fcccdbc, 050133e1aa2cb49bb17be847d48a4431598ef562 |
| Linux/Linuxgeneric | 4.7 | Not reported |
Published upstream
Feb 26, 2025
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: net: bonding: fix use-after-free after 802.3ad slave unbind commit 0622cab0341c ("bonding: fix 802.3ad aggregator reselection"), resolve case, when there is several aggregation groups in the same bond. bond_3ad_unbind_slave will invalidate (clear) aggregator when __agg_active_ports return zero. So, ad_clear_agg can be executed even, when num_of_ports!=0. Than bond_3ad_unbind_slave can be executed again for, previously cleared aggregator. NOTE: at this time bond_3ad_unbind_slave will not update slave ports list, because lag_ports==NULL. So, here we got slave ports, pointing to freed aggregator memory. Fix with checking actual number of ports in group (as was before commit 0622cab0341c ("bonding: fix 802.3ad aggregator reselection") ), before ad_clear_agg(). The KASAN logs are as follows: [ 767.617392] ================================================================== [ 767.630776] BUG: KASAN: use-after-free in bond_3ad_state_machine_handler+0x13dc/0x1470 [ 767.638764] Read of size 2 at addr ffff00011ba9d430 by task kworker/u8:7/767 [ 767.647361] CPU: 3 PID: 767 Comm: kworker/u8:7 Tainted: G O 5.15.11 #15 [ 767.655329] Hardware name: DNI AmazonGo1 A7040 board (DT) [ 767.660760] Workqueue: lacp_1 bond_3ad_state_machine_handler [ 767.666468] Call trace: [ 767.668930] dump_backtrace+0x0/0x2d0 [ 767.672625] show_stack+0x24/0x30 [ 767.675965] dump_stack_lvl+0x68/0x84 [ 767.679659] print_address_description.constprop.0+0x74/0x2b8 [ 767.685451] kasan_report+0x1f0/0x260 [ 767.689148] __asan_load2+0x94/0xd0 [ 767.692667] bond_3ad_state_machine_handler+0x13dc/0x1470
Quoted source text, attributed separately from HOL analysis.