ghsa-6gpm-qxpm-qmwf
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
sfc: fix considering that all channels have TX queues
Normally, all channels have RX and TX queues, but this is not true if modparam efx_separate_tx_channels=1 is used. In that cases, some channels only have RX queues and others only TX queues (or more preciselly, they have them allocated, but not initialized).
Fix efx_channel_has_tx_queues to return the correct value for this case too.
Messages shown at probe time before the fix: sfc 0000:03:00.0 ens6f0np0: MC command 0x82 inlen 544 failed rc=-22 (raw=0) arg=0 ------------[ cut here ]------------ netdevice: ens6f0np0: failed to initialise TXQ -1 WARNING: CPU: 1 PID: 626 at drivers/net/ethernet/sfc/ef10.c:2393 efx_ef10_tx_init+0x201/0x300 [sfc] [...] stripped RIP: 0010:efx_ef10_tx_init+0x201/0x300 [sfc] [...] stripped Call Trace: efx_init_tx_queue+0xaa/0xf0 [sfc] efx_start_channels+0x49/0x120 [sfc] efx_start_all+0x1f8/0x430 [sfc] efx_net_open+0x5a/0xe0 [sfc] __dev_open+0xd0/0x190 __dev_change_flags+0x1b3/0x220 dev_change_flags+0x21/0x60 [...] stripped
Messages shown at remove time before the fix: sfc 0000:03:00.0 ens6f0np0: failed to flush 10 queues sfc 0000:03:00.0 ens6f0np0: failed to flush queues
{
"affected": [],
"aliases": [
"CVE-2022-49378"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-26T07:01:14Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsfc: fix considering that all channels have TX queues\n\nNormally, all channels have RX and TX queues, but this is not true if\nmodparam efx_separate_tx_channels=1 is used. In that cases, some\nchannels only have RX queues and others only TX queues (or more\npreciselly, they have them allocated, but not initialized).\n\nFix efx_channel_has_tx_queues to return the correct value for this case\ntoo.\n\nMessages shown at probe time before the fix:\n sfc 0000:03:00.0 ens6f0np0: MC command 0x82 inlen 544 failed rc=-22 (raw=0) arg=0\n ------------[ cut here ]------------\n netdevice: ens6f0np0: failed to initialise TXQ -1\n WARNING: CPU: 1 PID: 626 at drivers/net/ethernet/sfc/ef10.c:2393 efx_ef10_tx_init+0x201/0x300 [sfc]\n [...] stripped\n RIP: 0010:efx_ef10_tx_init+0x201/0x300 [sfc]\n [...] stripped\n Call Trace:\n efx_init_tx_queue+0xaa/0xf0 [sfc]\n efx_start_channels+0x49/0x120 [sfc]\n efx_start_all+0x1f8/0x430 [sfc]\n efx_net_open+0x5a/0xe0 [sfc]\n __dev_open+0xd0/0x190\n __dev_change_flags+0x1b3/0x220\n dev_change_flags+0x21/0x60\n [...] stripped\n\nMessages shown at remove time before the fix:\n sfc 0000:03:00.0 ens6f0np0: failed to flush 10 queues\n sfc 0000:03:00.0 ens6f0np0: failed to flush queues",
"id": "GHSA-6gpm-qxpm-qmwf",
"modified": "2025-10-21T12:31:25Z",
"published": "2025-10-21T12:31:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49378"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2e102b53f8a778f872dc137f4c7ac548705817aa"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5567d69b95b9c07e1c56f15cf0301251d12e5f97"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8f81a4113e1e574d2cbde4f2cd599380a9189c0f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/913d45f02d346ce41c4aad057eaf53a8ed449dc3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e7e8d5e25dc762b70f9c88ec6b7d451d0816eead"
}
],
"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"
}
]
}
Sightings
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