CVE-2021-47395 (GCVE-0-2021-47395)

Vulnerability from cvelistv5 – Published: 2024-05-21 15:03 – Updated: 2025-05-04 07:10
VLAI?
Title
mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap
Summary
In the Linux kernel, the following vulnerability has been resolved: mac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap Limit max values for vht mcs and nss in ieee80211_parse_tx_radiotap routine in order to fix the following warning reported by syzbot: WARNING: CPU: 0 PID: 10717 at include/net/mac80211.h:989 ieee80211_rate_set_vht include/net/mac80211.h:989 [inline] WARNING: CPU: 0 PID: 10717 at include/net/mac80211.h:989 ieee80211_parse_tx_radiotap+0x101e/0x12d0 net/mac80211/tx.c:2244 Modules linked in: CPU: 0 PID: 10717 Comm: syz-executor.5 Not tainted 5.14.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ieee80211_rate_set_vht include/net/mac80211.h:989 [inline] RIP: 0010:ieee80211_parse_tx_radiotap+0x101e/0x12d0 net/mac80211/tx.c:2244 RSP: 0018:ffffc9000186f3e8 EFLAGS: 00010216 RAX: 0000000000000618 RBX: ffff88804ef76500 RCX: ffffc900143a5000 RDX: 0000000000040000 RSI: ffffffff888f478e RDI: 0000000000000003 RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000100 R10: ffffffff888f46f9 R11: 0000000000000000 R12: 00000000fffffff8 R13: ffff88804ef7653c R14: 0000000000000001 R15: 0000000000000004 FS: 00007fbf5718f700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2de23000 CR3: 000000006a671000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: ieee80211_monitor_select_queue+0xa6/0x250 net/mac80211/iface.c:740 netdev_core_pick_tx+0x169/0x2e0 net/core/dev.c:4089 __dev_queue_xmit+0x6f9/0x3710 net/core/dev.c:4165 __bpf_tx_skb net/core/filter.c:2114 [inline] __bpf_redirect_no_mac net/core/filter.c:2139 [inline] __bpf_redirect+0x5ba/0xd20 net/core/filter.c:2162 ____bpf_clone_redirect net/core/filter.c:2429 [inline] bpf_clone_redirect+0x2ae/0x420 net/core/filter.c:2401 bpf_prog_eeb6f53a69e5c6a2+0x59/0x234 bpf_dispatcher_nop_func include/linux/bpf.h:717 [inline] __bpf_prog_run include/linux/filter.h:624 [inline] bpf_prog_run include/linux/filter.h:631 [inline] bpf_test_run+0x381/0xa30 net/bpf/test_run.c:119 bpf_prog_test_run_skb+0xb84/0x1ee0 net/bpf/test_run.c:663 bpf_prog_test_run kernel/bpf/syscall.c:3307 [inline] __sys_bpf+0x2137/0x5df0 kernel/bpf/syscall.c:4605 __do_sys_bpf kernel/bpf/syscall.c:4691 [inline] __se_sys_bpf kernel/bpf/syscall.c:4689 [inline] __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4689 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665f9
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 646e76bb5daf4ca38438c69ffb72cccb605f3466 , < e5bb852aa2ad963074f0ad73030dbc20a30853e3 (git)
Affected: 646e76bb5daf4ca38438c69ffb72cccb605f3466 , < ce5f372f5f084ff51c285fc27b232f15a3d00f0b (git)
Affected: 646e76bb5daf4ca38438c69ffb72cccb605f3466 , < 76538c7b4df314bb937e44c5cb1782f37d47443c (git)
Affected: 646e76bb5daf4ca38438c69ffb72cccb605f3466 , < ab85997465b972d39d9747fc16311fa5773374b2 (git)
Affected: 646e76bb5daf4ca38438c69ffb72cccb605f3466 , < 1282bb00835ff79d2d9c023055d514df5b4de260 (git)
Affected: 646e76bb5daf4ca38438c69ffb72cccb605f3466 , < 997ee230e4f5285cd98445c102d9033c7ec4814b (git)
Affected: 646e76bb5daf4ca38438c69ffb72cccb605f3466 , < 13cb6d826e0ac0d144b0d48191ff1a111d32f0c6 (git)
Create a notification for this product.
    Linux Linux Affected: 4.7
Unaffected: 0 , < 4.7 (semver)
Unaffected: 4.9.285 , ≤ 4.9.* (semver)
Unaffected: 4.14.249 , ≤ 4.14.* (semver)
Unaffected: 4.19.209 , ≤ 4.19.* (semver)
Unaffected: 5.4.151 , ≤ 5.4.* (semver)
Unaffected: 5.10.71 , ≤ 5.10.* (semver)
Unaffected: 5.14.10 , ≤ 5.14.* (semver)
Unaffected: 5.15 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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\"unaffected\", \"version\": \"5.10.71\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.14.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.14.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/mac80211/tx.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/e5bb852aa2ad963074f0ad73030dbc20a30853e3\"}, {\"url\": \"https://git.kernel.org/stable/c/ce5f372f5f084ff51c285fc27b232f15a3d00f0b\"}, {\"url\": \"https://git.kernel.org/stable/c/76538c7b4df314bb937e44c5cb1782f37d47443c\"}, {\"url\": \"https://git.kernel.org/stable/c/ab85997465b972d39d9747fc16311fa5773374b2\"}, {\"url\": \"https://git.kernel.org/stable/c/1282bb00835ff79d2d9c023055d514df5b4de260\"}, {\"url\": \"https://git.kernel.org/stable/c/997ee230e4f5285cd98445c102d9033c7ec4814b\"}, {\"url\": \"https://git.kernel.org/stable/c/13cb6d826e0ac0d144b0d48191ff1a111d32f0c6\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmac80211: limit injected vht mcs/nss in ieee80211_parse_tx_radiotap\\n\\nLimit max values for vht mcs and nss in ieee80211_parse_tx_radiotap\\nroutine in order to fix the following warning reported by syzbot:\\n\\nWARNING: CPU: 0 PID: 10717 at include/net/mac80211.h:989 ieee80211_rate_set_vht include/net/mac80211.h:989 [inline]\\nWARNING: CPU: 0 PID: 10717 at include/net/mac80211.h:989 ieee80211_parse_tx_radiotap+0x101e/0x12d0 net/mac80211/tx.c:2244\\nModules linked in:\\nCPU: 0 PID: 10717 Comm: syz-executor.5 Not tainted 5.14.0-syzkaller #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011\\nRIP: 0010:ieee80211_rate_set_vht include/net/mac80211.h:989 [inline]\\nRIP: 0010:ieee80211_parse_tx_radiotap+0x101e/0x12d0 net/mac80211/tx.c:2244\\nRSP: 0018:ffffc9000186f3e8 EFLAGS: 00010216\\nRAX: 0000000000000618 RBX: ffff88804ef76500 RCX: ffffc900143a5000\\nRDX: 0000000000040000 RSI: ffffffff888f478e RDI: 0000000000000003\\nRBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000100\\nR10: ffffffff888f46f9 R11: 0000000000000000 R12: 00000000fffffff8\\nR13: ffff88804ef7653c R14: 0000000000000001 R15: 0000000000000004\\nFS:  00007fbf5718f700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 0000001b2de23000 CR3: 000000006a671000 CR4: 00000000001506f0\\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600\\nCall Trace:\\n ieee80211_monitor_select_queue+0xa6/0x250 net/mac80211/iface.c:740\\n netdev_core_pick_tx+0x169/0x2e0 net/core/dev.c:4089\\n __dev_queue_xmit+0x6f9/0x3710 net/core/dev.c:4165\\n __bpf_tx_skb net/core/filter.c:2114 [inline]\\n __bpf_redirect_no_mac net/core/filter.c:2139 [inline]\\n __bpf_redirect+0x5ba/0xd20 net/core/filter.c:2162\\n ____bpf_clone_redirect net/core/filter.c:2429 [inline]\\n bpf_clone_redirect+0x2ae/0x420 net/core/filter.c:2401\\n bpf_prog_eeb6f53a69e5c6a2+0x59/0x234\\n bpf_dispatcher_nop_func include/linux/bpf.h:717 [inline]\\n __bpf_prog_run include/linux/filter.h:624 [inline]\\n bpf_prog_run include/linux/filter.h:631 [inline]\\n bpf_test_run+0x381/0xa30 net/bpf/test_run.c:119\\n bpf_prog_test_run_skb+0xb84/0x1ee0 net/bpf/test_run.c:663\\n bpf_prog_test_run kernel/bpf/syscall.c:3307 [inline]\\n __sys_bpf+0x2137/0x5df0 kernel/bpf/syscall.c:4605\\n __do_sys_bpf kernel/bpf/syscall.c:4691 [inline]\\n __se_sys_bpf kernel/bpf/syscall.c:4689 [inline]\\n __x64_sys_bpf+0x75/0xb0 kernel/bpf/syscall.c:4689\\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\\n do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\\n entry_SYSCALL_64_after_hwframe+0x44/0xae\\nRIP: 0033:0x4665f9\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.9.285\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.14.249\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.209\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.151\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.71\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.14.10\", \"versionStartIncluding\": \"4.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15\", \"versionStartIncluding\": \"4.7\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T07:10:05.071Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47395\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T07:10:05.071Z\", \"dateReserved\": \"2024-05-21T14:58:30.814Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T15:03:52.151Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.