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CVE-2024-50040

Vulnérabilité non évaluée dans Linux (Linux)

CVSS 0.0 · Non évaluée
EPSS 0.3%
Linux•Linux•Versions : 6.12, <=6.1.*, <=6.11.*, <5.4.285, 5.4.251, <6.5, 5.4.285, 0, <6a39c8f5c8aae74c5ab2ba466791f59ffaab0178, c2312e1d12b1c3ee4100c173131b102e2aed4d04, <57c5053eaa5f9a8a99e34732e37a86615318e464, 994c2ceb70ea99264ccc6f09e6703ca267dad63c, <c92cbd283ddcf55fd85a9a9b0ba13298213f3dd7, 6.11.4, <d79af3af2f49c6aae9add3d492c04d60c1b85ce4, 6.6.57, 6.5, 004d25060c78fc31f66da0fa439c544dda1ac9d5, <=5.10.*, 4.14.322, <=6.6.*, 124e39a734cb90658b8f0dc110847bbfc6e33792, 41f63b72a01c0e0ac59ab83fd2d921fcce0f602d, <500be93c5d53b7e2c5314292012185f0207bad0c, <=5.4.*, <=4.19.*, 6.1.113, fa92c463eba75dcedbd8d689ffdcb83293aaa0c3, <4.19.323, 6.1.42, 39695e87d86f0e7d897fba1d2559f825aa20caeb, 4.19.323, <330a699ecbfc9c26ec92c6310686da1230b4e7eb, <0a94079e3841d00ea5abb05e3233d019a86745f6, <6.1.113, <5.10.227, <=*, c9f56f3c7bc908caa772112d3ae71cdd5d18c257, <=5.15.*, 4.19.291, 5.10.188, 5.10.227, <5.15.168, 5.15.168, <4.15, 5.15.150, <dca2ca65a8695d9593e2cf1b40848e073ad75413, 6.4.7

Description

In the Linux kernel, the following vulnerability has been resolved: igb: Do not bring the device up after non-fatal error Commit 004d25060c78 ("igb: Fix igb_down hung on surprise removal") changed igb_io_error_detected() to ignore non-fatal pcie errors in order to avoid hung task that can happen when igb_down() is called multiple times. This caused an issue when processing transient non-fatal errors. igb_io_resume(), which is called after igb_io_error_detected(), assumes that device is brought down by igb_io_error_detected() if the interface is up. This resulted in panic with stacktrace below. [ T3256] igb 0000:09:00.0 haeth0: igb: haeth0 NIC Link is Down [ T292] pcieport 0000:00:1c.5: AER: Uncorrected (Non-Fatal) error received: 0000:09:00.0 [ T292] igb 0000:09:00.0: PCIe Bus Error: severity=Uncorrected (Non-Fatal), type=Transaction Layer, (Requester ID) [ T292] igb 0000:09:00.0: device [8086:1537] error status/mask=00004000/00000000 [ T292] igb 0000:09:00.0: [14] CmpltTO [ 200.105524,009][ T292] igb 0000:09:00.0: AER: TLP Header: 00000000 00000000 00000000 00000000 [ T292] pcieport 0000:00:1c.5: AER: broadcast error_detected message [ T292] igb 0000:09:00.0: Non-correctable non-fatal error reported. [ T292] pcieport 0000:00:1c.5: AER: broadcast mmio_enabled message [ T292] pcieport 0000:00:1c.5: AER: broadcast resume message [ T292] ------------[ cut here ]------------ [ T292] kernel BUG at net/core/dev.c:6539! [ T292] invalid opcode: 0000 [#1] PREEMPT SMP [ T292] RIP: 0010:napi_enable+0x37/0x40 [ T292] Call Trace: [ T292] <TASK> [ T292] ? die+0x33/0x90 [ T292] ? do_trap+0xdc/0x110 [ T292] ? napi_enable+0x37/0x40 [ T292] ? do_error_trap+0x70/0xb0 [ T292] ? napi_enable+0x37/0x40 [ T292] ? napi_enable+0x37/0x40 [ T292] ? exc_invalid_op+0x4e/0x70 [ T292] ? napi_enable+0x37/0x40 [ T292] ? asm_exc_invalid_op+0x16/0x20 [ T292] ? napi_enable+0x37/0x40 [ T292] igb_up+0x41/0x150 [ T292] igb_io_resume+0x25/0x70 [ T292] report_resume+0x54/0x70 [ T292] ? report_frozen_detected+0x20/0x20 [ T292] pci_walk_bus+0x6c/0x90 [ T292] ? aer_print_port_info+0xa0/0xa0 [ T292] pcie_do_recovery+0x22f/0x380 [ T292] aer_process_err_devices+0x110/0x160 [ T292] aer_isr+0x1c1/0x1e0 [ T292] ? disable_irq_nosync+0x10/0x10 [ T292] irq_thread_fn+0x1a/0x60 [ T292] irq_thread+0xe3/0x1a0 [ T292] ? irq_set_affinity_notifier+0x120/0x120 [ T292] ? irq_affinity_notify+0x100/0x100 [ T292] kthread+0xe2/0x110 [ T292] ? kthread_complete_and_exit+0x20/0x20 [ T292] ret_from_fork+0x2d/0x50 [ T292] ? kthread_complete_and_exit+0x20/0x20 [ T292] ret_from_fork_asm+0x11/0x20 [ T292] </TASK> To fix this issue igb_io_resume() checks if the interface is running and the device is not down this means igb_io_error_detected() did not bring the device down and there is no need to bring it up.

Gravité et risque d'exploitation

CVE-2024-50040 obtient un score CVSS de 0.0/10, soit une gravité non évaluée. Selon le modèle EPSS, la probabilité qu'elle soit exploitée dans les 30 prochains jours est de 0.26 %, ce qui la place devant 16.4 % des CVE référencées.

Que faire ?

  • Vérifiez si Linux (versions 6.12, <=6.1.*, <=6.11.*, <5.4.285, 5.4.251, <6.5, 5.4.285, 0, <6a39c8f5c8aae74c5ab2ba466791f59ffaab0178, c2312e1d12b1c3ee4100c173131b102e2aed4d04, <57c5053eaa5f9a8a99e34732e37a86615318e464, 994c2ceb70ea99264ccc6f09e6703ca267dad63c, <c92cbd283ddcf55fd85a9a9b0ba13298213f3dd7, 6.11.4, <d79af3af2f49c6aae9add3d492c04d60c1b85ce4, 6.6.57, 6.5, 004d25060c78fc31f66da0fa439c544dda1ac9d5, <=5.10.*, 4.14.322, <=6.6.*, 124e39a734cb90658b8f0dc110847bbfc6e33792, 41f63b72a01c0e0ac59ab83fd2d921fcce0f602d, <500be93c5d53b7e2c5314292012185f0207bad0c, <=5.4.*, <=4.19.*, 6.1.113, fa92c463eba75dcedbd8d689ffdcb83293aaa0c3, <4.19.323, 6.1.42, 39695e87d86f0e7d897fba1d2559f825aa20caeb, 4.19.323, <330a699ecbfc9c26ec92c6310686da1230b4e7eb, <0a94079e3841d00ea5abb05e3233d019a86745f6, <6.1.113, <5.10.227, <=*, c9f56f3c7bc908caa772112d3ae71cdd5d18c257, <=5.15.*, 4.19.291, 5.10.188, 5.10.227, <5.15.168, 5.15.168, <4.15, 5.15.150, <dca2ca65a8695d9593e2cf1b40848e073ad75413, 6.4.7) est présent sur votre parc.
  • Appliquez le correctif ou la version corrigée indiqués dans les références de l'éditeur.
  • À défaut de correctif, limitez l'exposition (filtrage réseau, désactivation du composant).
  • Automatisez la détection : les agents CVE Heimdall (gratuits, open source) corrèlent l'inventaire de vos serveurs avec la base CVE.

Références

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