GHSA-2Q4P-MH77-5J5X
Vulnerability from github – Published: 2025-03-12 00:31 – Updated: 2025-03-12 00:31In the Linux kernel, the following vulnerability has been resolved:
linux/dim: Fix divide by 0 in RDMA DIM
Fix a divide 0 error in rdma_dim_stats_compare() when prev->cpe_ratio == 0.
CallTrace: Hardware name: H3C R4900 G3/RS33M2C9S, BIOS 2.00.37P21 03/12/2020 task: ffff880194b78000 task.stack: ffffc90006714000 RIP: 0010:backport_rdma_dim+0x10e/0x240 [mlx_compat] RSP: 0018:ffff880c10e83ec0 EFLAGS: 00010202 RAX: 0000000000002710 RBX: ffff88096cd7f780 RCX: 0000000000000064 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 000000001d7c6c09 R13: ffff88096cd7f780 R14: ffff880b174fe800 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff880c10e80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000a0965b00 CR3: 000000000200a003 CR4: 00000000007606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: ib_poll_handler+0x43/0x80 [ib_core] irq_poll_softirq+0xae/0x110 __do_softirq+0xd1/0x28c irq_exit+0xde/0xf0 do_IRQ+0x54/0xe0 common_interrupt+0x8f/0x8f ? cpuidle_enter_state+0xd9/0x2a0 ? cpuidle_enter_state+0xc7/0x2a0 ? do_idle+0x170/0x1d0 ? cpu_startup_entry+0x6f/0x80 ? start_secondary+0x1b9/0x210 ? secondary_startup_64+0xa5/0xb0 Code: 0f 87 e1 00 00 00 8b 4c 24 14 44 8b 43 14 89 c8 4d 63 c8 44 29 c0 99 31 d0 29 d0 31 d2 48 98 48 8d 04 80 48 8d 04 80 48 c1 e0 02 <49> f7 f1 48 83 f8 0a 0f 86 c1 00 00 00 44 39 c1 7f 10 48 89 df RIP: backport_rdma_dim+0x10e/0x240 [mlx_compat] RSP: ffff880c10e83ec0
{
"affected": [],
"aliases": [
"CVE-2022-49670"
],
"database_specific": {
"cwe_ids": [
"CWE-369"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-26T07:01:41Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nlinux/dim: Fix divide by 0 in RDMA DIM\n\nFix a divide 0 error in rdma_dim_stats_compare() when prev-\u003ecpe_ratio ==\n0.\n\nCallTrace:\n Hardware name: H3C R4900 G3/RS33M2C9S, BIOS 2.00.37P21 03/12/2020\n task: ffff880194b78000 task.stack: ffffc90006714000\n RIP: 0010:backport_rdma_dim+0x10e/0x240 [mlx_compat]\n RSP: 0018:ffff880c10e83ec0 EFLAGS: 00010202\n RAX: 0000000000002710 RBX: ffff88096cd7f780 RCX: 0000000000000064\n RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000001\n RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000\n R10: 0000000000000000 R11: 0000000000000000 R12: 000000001d7c6c09\n R13: ffff88096cd7f780 R14: ffff880b174fe800 R15: 0000000000000000\n FS: 0000000000000000(0000) GS:ffff880c10e80000(0000)\n knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00000000a0965b00 CR3: 000000000200a003 CR4: 00000000007606e0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n PKRU: 55555554\n Call Trace:\n \u003cIRQ\u003e\n ib_poll_handler+0x43/0x80 [ib_core]\n irq_poll_softirq+0xae/0x110\n __do_softirq+0xd1/0x28c\n irq_exit+0xde/0xf0\n do_IRQ+0x54/0xe0\n common_interrupt+0x8f/0x8f\n \u003c/IRQ\u003e\n ? cpuidle_enter_state+0xd9/0x2a0\n ? cpuidle_enter_state+0xc7/0x2a0\n ? do_idle+0x170/0x1d0\n ? cpu_startup_entry+0x6f/0x80\n ? start_secondary+0x1b9/0x210\n ? secondary_startup_64+0xa5/0xb0\n Code: 0f 87 e1 00 00 00 8b 4c 24 14 44 8b 43 14 89 c8 4d 63 c8 44 29 c0 99 31 d0 29 d0 31 d2 48 98 48 8d 04 80 48 8d 04 80 48 c1 e0 02 \u003c49\u003e f7 f1 48 83 f8 0a 0f 86 c1 00 00 00 44 39 c1 7f 10 48 89 df\n RIP: backport_rdma_dim+0x10e/0x240 [mlx_compat] RSP: ffff880c10e83ec0",
"id": "GHSA-2q4p-mh77-5j5x",
"modified": "2025-03-12T00:31:48Z",
"published": "2025-03-12T00:31:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49670"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0b6e0eb5c45e79e9095de2498cc0ca5ec563fc5e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0fe3dbbefb74a8575f61d7801b08dbc50523d60d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5af106f8e072aebd88b95e164a08fa320651a99a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7c1963391af51ee322378d1b2849c60e9037f069"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fae2a9fb1eaf348ad8732f90d42ebbb971bd7e95"
}
],
"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"
}
]
}
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