ghsa-m6qv-4wqw-vj9p
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
erofs: fix race in z_erofs_get_gbuf()
In z_erofs_get_gbuf(), the current task may be migrated to another
CPU between z_erofs_gbuf_id() and spin_lock(&gbuf->lock).
Therefore, z_erofs_put_gbuf() will trigger the following issue which was found by stress test:
<2>[772156.434168] kernel BUG at fs/erofs/zutil.c:58! .. <4>[772156.435007] <4>[772156.439237] CPU: 0 PID: 3078 Comm: stress Kdump: loaded Tainted: G E 6.10.0-rc7+ #2 <4>[772156.439239] Hardware name: Alibaba Cloud Alibaba Cloud ECS, BIOS 1.0.0 01/01/2017 <4>[772156.439241] pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) <4>[772156.439243] pc : z_erofs_put_gbuf+0x64/0x70 [erofs] <4>[772156.439252] lr : z_erofs_lz4_decompress+0x600/0x6a0 [erofs] .. <6>[772156.445958] stress (3127): drop_caches: 1 <4>[772156.446120] Call trace: <4>[772156.446121] z_erofs_put_gbuf+0x64/0x70 [erofs] <4>[772156.446761] z_erofs_lz4_decompress+0x600/0x6a0 [erofs] <4>[772156.446897] z_erofs_decompress_queue+0x740/0xa10 [erofs] <4>[772156.447036] z_erofs_runqueue+0x428/0x8c0 [erofs] <4>[772156.447160] z_erofs_readahead+0x224/0x390 [erofs] ..
{
"affected": [],
"aliases": [
"CVE-2024-42300"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-17T09:15:10Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix race in z_erofs_get_gbuf()\n\nIn z_erofs_get_gbuf(), the current task may be migrated to another\nCPU between `z_erofs_gbuf_id()` and `spin_lock(\u0026gbuf-\u003elock)`.\n\nTherefore, z_erofs_put_gbuf() will trigger the following issue\nwhich was found by stress test:\n\n\u003c2\u003e[772156.434168] kernel BUG at fs/erofs/zutil.c:58!\n..\n\u003c4\u003e[772156.435007]\n\u003c4\u003e[772156.439237] CPU: 0 PID: 3078 Comm: stress Kdump: loaded Tainted: G E 6.10.0-rc7+ #2\n\u003c4\u003e[772156.439239] Hardware name: Alibaba Cloud Alibaba Cloud ECS, BIOS 1.0.0 01/01/2017\n\u003c4\u003e[772156.439241] pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\n\u003c4\u003e[772156.439243] pc : z_erofs_put_gbuf+0x64/0x70 [erofs]\n\u003c4\u003e[772156.439252] lr : z_erofs_lz4_decompress+0x600/0x6a0 [erofs]\n..\n\u003c6\u003e[772156.445958] stress (3127): drop_caches: 1\n\u003c4\u003e[772156.446120] Call trace:\n\u003c4\u003e[772156.446121] z_erofs_put_gbuf+0x64/0x70 [erofs]\n\u003c4\u003e[772156.446761] z_erofs_lz4_decompress+0x600/0x6a0 [erofs]\n\u003c4\u003e[772156.446897] z_erofs_decompress_queue+0x740/0xa10 [erofs]\n\u003c4\u003e[772156.447036] z_erofs_runqueue+0x428/0x8c0 [erofs]\n\u003c4\u003e[772156.447160] z_erofs_readahead+0x224/0x390 [erofs]\n..",
"id": "GHSA-m6qv-4wqw-vj9p",
"modified": "2024-08-17T09:30:24Z",
"published": "2024-08-17T09:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42300"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/49b22e06a947727a6d1c802d2d9ad92420b90fc5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7dc5537c3f8be87e005f0844a7626c987914f8fd"
}
],
"schema_version": "1.4.0",
"severity": []
}
- 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.