net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler()
In the Linux kernel, the following vulnerability has been resolved: net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler() When performing a stress test on SMC-R by rmmod mlx5_ib driver during the wrk/nginx test, we found that there is a probability of triggering a panic while terminating all link groups. This issue dues to the race between smc_smcr_terminate_all() and smc_buf_create(). smc_smcr_terminate_all smc_buf_create /* init */ conn->sndbuf_desc = NULL; ... __smc_lgr_terminate smc_conn_kill smc_close_abort smc_cdc_get_slot_and_msg_send __softirqentry_text_start smc_wr_tx_process_cqe smc_cdc_tx_handler READ(conn->sndbuf_desc->len); /* panic dues to NULL sndbuf_desc */ conn->sndbuf_desc = xxx; This patch tries to fix the issue by always to check the sndbuf_desc before send any cdc msg, to make sure that no null pointer is seen during cqe processing.
CVE-2023-53110
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2023-53110
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "0b29ec6436138721acf5844e558f7334a0fa61d5",
"lessThan": "31817c530768b0199771ec6019571b4f0ddbf230",
"versionType": "git"
},
{
"status": "affected",
"version": "0b29ec6436138721acf5844e558f7334a0fa61d5",
"lessThan": "b108bd9e6be000492ebebe867daa699285978a10",
"versionType": "git"
},
{
"status": "affected",
"version": "0b29ec6436138721acf5844e558f7334a0fa61d5",
"lessThan": "3c270435db8aa34929263dddae8fd050f5216ecb",
"versionType": "git"
},
{
"status": "affected",
"version": "0b29ec6436138721acf5844e558f7334a0fa61d5",
"lessThan": "3ebac7cf0a184a8102821a7a00203f02bebda83c",
"versionType": "git"
},
{
"status": "affected",
"version": "0b29ec6436138721acf5844e558f7334a0fa61d5",
"lessThan": "22a825c541d775c1dbe7b2402786025acad6727b",
"versionType": "git"
}
],
"programFiles": [
"net/smc/smc_cdc.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.5"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.5",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.176",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.104",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.21",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.2.8",
"versionType": "semver",
"lessThanOrEqual": "6.2.*"
},
{
"status": "unaffected",
"version": "6.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/smc/smc_cdc.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2023-53110
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30258 · Revision 1
- Added to Heist Feed
- Publisher date