ghsa-rqp9-2crf-qjg9
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
lib: objagg: Fix general protection fault
The library supports aggregation of objects into other objects only if the parent object does not have a parent itself. That is, nesting is not supported.
Aggregation happens in two cases: Without and with hints, where hints are a pre-computed recommendation on how to aggregate the provided objects.
Nesting is not possible in the first case due to a check that prevents it, but in the second case there is no check because the assumption is that nesting cannot happen when creating objects based on hints. The violation of this assumption leads to various warnings and eventually to a general protection fault [1].
Before fixing the root cause, error out when nesting happens and warn.
[1]
general protection fault, probably for non-canonical address 0xdead000000000d90: 0000 [#1] PREEMPT SMP PTI
CPU: 1 PID: 1083 Comm: kworker/1:9 Tainted: G W 6.9.0-rc6-custom-gd9b4f1cca7fb #7
Hardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019
Workqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work
RIP: 0010:mlxsw_sp_acl_erp_bf_insert+0x25/0x80
[...]
Call Trace:
{
"affected": [],
"aliases": [
"CVE-2024-43846"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-17T10:15:09Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nlib: objagg: Fix general protection fault\n\nThe library supports aggregation of objects into other objects only if\nthe parent object does not have a parent itself. That is, nesting is not\nsupported.\n\nAggregation happens in two cases: Without and with hints, where hints\nare a pre-computed recommendation on how to aggregate the provided\nobjects.\n\nNesting is not possible in the first case due to a check that prevents\nit, but in the second case there is no check because the assumption is\nthat nesting cannot happen when creating objects based on hints. The\nviolation of this assumption leads to various warnings and eventually to\na general protection fault [1].\n\nBefore fixing the root cause, error out when nesting happens and warn.\n\n[1]\ngeneral protection fault, probably for non-canonical address 0xdead000000000d90: 0000 [#1] PREEMPT SMP PTI\nCPU: 1 PID: 1083 Comm: kworker/1:9 Tainted: G W 6.9.0-rc6-custom-gd9b4f1cca7fb #7\nHardware name: Mellanox Technologies Ltd. MSN3700/VMOD0005, BIOS 5.11 01/06/2019\nWorkqueue: mlxsw_core mlxsw_sp_acl_tcam_vregion_rehash_work\nRIP: 0010:mlxsw_sp_acl_erp_bf_insert+0x25/0x80\n[...]\nCall Trace:\n \u003cTASK\u003e\n mlxsw_sp_acl_atcam_entry_add+0x256/0x3c0\n mlxsw_sp_acl_tcam_entry_create+0x5e/0xa0\n mlxsw_sp_acl_tcam_vchunk_migrate_one+0x16b/0x270\n mlxsw_sp_acl_tcam_vregion_rehash_work+0xbe/0x510\n process_one_work+0x151/0x370\n worker_thread+0x2cb/0x3e0\n kthread+0xd0/0x100\n ret_from_fork+0x34/0x50\n ret_from_fork_asm+0x1a/0x30\n \u003c/TASK\u003e",
"id": "GHSA-rqp9-2crf-qjg9",
"modified": "2024-10-25T21:31:26Z",
"published": "2024-08-17T12:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43846"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1936fa05a180834c3b52e0439a6bddc07814d3eb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/22ae17a267f4812861f0c644186c3421ff97dbfc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/499f742fed42e74f1321f4b12ca196a66a2b49fc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/565213e005557eb6cc4e42189d26eb300e02f170"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5adc61d29bbb461d7f7c2b48dceaa90ecd182eb7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8161263362154cbebfbf4808097b956a6a8cb98a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b4a3a89fffcdf09702b1f161b914e52abca1894d"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.