wifi: mac80211: Fix deadlock in ieee80211_sta_ps_deliver_wakeup()
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Fix deadlock in ieee80211_sta_ps_deliver_wakeup() The ieee80211_sta_ps_deliver_wakeup() function takes sta->ps_lock to synchronizes with ieee80211_tx_h_unicast_ps_buf() which is called from softirq context. However using only spin_lock() to get sta->ps_lock in ieee80211_sta_ps_deliver_wakeup() does not prevent softirq to execute on this same CPU, to run ieee80211_tx_h_unicast_ps_buf() and try to take this same lock ending in deadlock. Below is an example of rcu stall that arises in such situation. rcu: INFO: rcu_sched self-detected stall on CPU rcu: 2-....: (42413413 ticks this GP) idle=b154/1/0x4000000000000000 softirq=1763/1765 fqs=21206996 rcu: (t=42586894 jiffies g=2057 q=362405 ncpus=4) CPU: 2 PID: 719 Comm: wpa_supplicant Tainted: G W 6.4.0-02158-g1b062f552873 #742 Hardware name: RPT (r1) (DT) pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : queued_spin_lock_slowpath+0x58/0x2d0 lr : invoke_tx_handlers_early+0x5b4/0x5c0 sp : ffff00001ef64660 x29: ffff00001ef64660 x28: ffff000009bc1070 x27: ffff000009bc0ad8 x26: ffff000009bc0900 x25: ffff00001ef647a8 x24: 0000000000000000 x23: ffff000009bc0900 x22: ffff000009bc0900 x21: ffff00000ac0e000 x20: ffff00000a279e00 x19: ffff00001ef646e8 x18: 0000000000000000 x17: ffff800016468000 x16: ffff00001ef608c0 x15: 0010533c93f64f80 x14: 0010395c9faa3946 x13: 0000000000000000 x12: 00000000fa83b2da x11: 000000012edeceea x10: ffff0000010f
CVE-2024-40912
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-2024-40912
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": "1d147bfa64293b2723c4fec50922168658e613ba",
"lessThan": "e51637e0c66a6f72d134d9f95daa47ea62b43c7e",
"versionType": "git"
},
{
"status": "affected",
"version": "1d147bfa64293b2723c4fec50922168658e613ba",
"lessThan": "28ba44d680a30c51cf485a2f5a3b680e66ed3932",
"versionType": "git"
},
{
"status": "affected",
"version": "1d147bfa64293b2723c4fec50922168658e613ba",
"lessThan": "e7e916d693dcb5a297f40312600a82475f2e63bc",
"versionType": "git"
},
{
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"versionType": "git"
},
{
"status": "affected",
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"lessThan": "9c49b58b9a2bed707e7638576e54c4bccd97b9eb",
"versionType": "git"
},
{
"status": "affected",
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"lessThan": "456bbb8a31e425177dc0e8d4f98728a560c20e81",
"versionType": "git"
},
{
"status": "affected",
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"lessThan": "47d176755d5c0baf284eff039560f8c1ba0ea485",
"versionType": "git"
},
{
"status": "affected",
"version": "1d147bfa64293b2723c4fec50922168658e613ba",
"lessThan": "44c06bbde6443de206b30f513100b5670b23fc5e",
"versionType": "git"
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{
"status": "affected",
"version": "ad64b463d919a18be70b281efb135231169caf4a",
"versionType": "git"
},
{
"status": "affected",
"version": "46a5a5493360f995b834eb3b828eb59da4604509",
"versionType": "git"
},
{
"status": "affected",
"version": "a7ee1a84a81555b19ec3d02f104bfd70cf0b668a",
"versionType": "git"
},
{
"status": "affected",
"version": "58d4310586466840dab77e56e53f4508853a5268",
"versionType": "git"
},
{
"status": "affected",
"version": "fcb6d3c79824d350893edfa7b50d6ba1f670c4ec",
"versionType": "git"
},
{
"status": "affected",
"version": "3.2.56",
"lessThan": "3.3",
"versionType": "semver"
},
{
"status": "affected",
"version": "3.4.84",
"lessThan": "3.5",
"versionType": "semver"
},
{
"status": "affected",
"version": "3.10.34",
"lessThan": "3.11",
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},
{
"status": "affected",
"version": "3.12.15",
"lessThan": "3.13",
"versionType": "semver"
},
{
"status": "affected",
"version": "3.13.7",
"lessThan": "3.14",
"versionType": "semver"
}
],
"programFiles": [
"net/mac80211/sta_info.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "3.14"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "3.14",
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{
"status": "unaffected",
"version": "4.19.317",
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"lessThanOrEqual": "4.19.*"
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{
"status": "unaffected",
"version": "5.4.279",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.221",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.162",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.95",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.35",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.9.6",
"versionType": "semver",
"lessThanOrEqual": "6.9.*"
},
{
"status": "unaffected",
"version": "6.10",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/mac80211/sta_info.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-40912
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26639 · Revision 1
- Added to Heist Feed
- Publisher date