CVE-2024-50155 (GCVE-0-2024-50155)

Vulnerability from cvelistv5 – Published: 2024-11-07 09:31 – Updated: 2025-11-03 22:26
VLAI?
Title
netdevsim: use cond_resched() in nsim_dev_trap_report_work()
Summary
In the Linux kernel, the following vulnerability has been resolved: netdevsim: use cond_resched() in nsim_dev_trap_report_work() I am still seeing many syzbot reports hinting that syzbot might fool nsim_dev_trap_report_work() with hundreds of ports [1] Lets use cond_resched(), and system_unbound_wq instead of implicit system_wq. [1] INFO: task syz-executor:20633 blocked for more than 143 seconds. Not tainted 6.12.0-rc2-syzkaller-00205-g1d227fcc7222 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:25856 pid:20633 tgid:20633 ppid:1 flags:0x00004006 ... NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 16760 Comm: kworker/1:0 Not tainted 6.12.0-rc2-syzkaller-00205-g1d227fcc7222 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events nsim_dev_trap_report_work RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:210 Code: 89 fb e8 23 00 00 00 48 8b 3d 04 fb 9c 0c 48 89 de 5b e9 c3 c7 5d 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 48 8b 04 24 65 48 8b 0c 25 c0 d7 03 00 65 8b 15 60 f0 RSP: 0018:ffffc90000a187e8 EFLAGS: 00000246 RAX: 0000000000000100 RBX: ffffc90000a188e0 RCX: ffff888027d3bc00 RDX: ffff888027d3bc00 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88804a2e6000 R08: ffffffff8a4bc495 R09: ffffffff89da3577 R10: 0000000000000004 R11: ffffffff8a4bc2b0 R12: dffffc0000000000 R13: ffff88806573b503 R14: dffffc0000000000 R15: ffff8880663cca00 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc90a747f98 CR3: 000000000e734000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 000000000000002b DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <TASK> __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382 spin_unlock_bh include/linux/spinlock.h:396 [inline] nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline] nsim_dev_trap_report_work+0x75d/0xaa0 drivers/net/netdevsim/dev.c:850 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK>
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0193e0660cc6689c794794b471492923cfd7bfbc , < 24973f4b64f93232a48fe78029385de762a2418d (git)
Affected: 6eecddd9c3c8d6e3a097531cdc6d500335b35e46 , < 681ce79ab6fba2f8d1c5ea60239f0086baebd0d3 (git)
Affected: ba5e1272142d051dcc57ca1d3225ad8a089f9858 , < 32f054f93937b548c61b3bf57d8f4aefc50f3b16 (git)
Affected: ba5e1272142d051dcc57ca1d3225ad8a089f9858 , < a1494d532e28598bde7a5544892ef9c7dbfafa93 (git)
Affected: d91964cdada76740811b7c621239f9c407820dbc (git)
Create a notification for this product.
    Linux Linux Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.1.115 , ≤ 6.1.* (semver)
Unaffected: 6.6.59 , ≤ 6.6.* (semver)
Unaffected: 6.11.6 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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ffffffff8a4bc495 R09: ffffffff89da3577\\nR10: 0000000000000004 R11: ffffffff8a4bc2b0 R12: dffffc0000000000\\nR13: ffff88806573b503 R14: dffffc0000000000 R15: ffff8880663cca00\\nFS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 00007fc90a747f98 CR3: 000000000e734000 CR4: 00000000003526f0\\nDR0: 0000000000000000 DR1: 000000000000002b DR2: 0000000000000000\\nDR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400\\nCall Trace:\\n \u003cNMI\u003e\\n \u003c/NMI\u003e\\n \u003cTASK\u003e\\n  __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382\\n  spin_unlock_bh include/linux/spinlock.h:396 [inline]\\n  nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline]\\n  nsim_dev_trap_report_work+0x75d/0xaa0 drivers/net/netdevsim/dev.c:850\\n  process_one_work kernel/workqueue.c:3229 [inline]\\n  process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310\\n  worker_thread+0x870/0xd30 kernel/workqueue.c:3391\\n  kthread+0x2f0/0x390 kernel/kthread.c:389\\n  ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147\\n  ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\\n \u003c/TASK\u003e\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.115\", \"versionStartIncluding\": \"6.1.78\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.59\", \"versionStartIncluding\": \"6.6.17\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.6\", \"versionStartIncluding\": \"6.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"6.8\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionStartIncluding\": \"6.7.5\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T12:59:38.780Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-50155\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-01T20:27:12.912Z\", \"dateReserved\": \"2024-10-21T19:36:19.960Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-11-07T09:31:31.848Z\", \"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.