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CVE-2022-49536— scsi: lpfc: Fix SCSI I/O completion and abort handler deadlock

AI Predicted 5.5 Difficulty: Moderate EPSS 0.20% · P10

Possible ATT&CK Techniques 1AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 10

VendorProductVersion RangeStatus
LinuxLinuxc2017260eea2db62e7bb1b7cbb1759f1d11ed067< 7625e81de2164a082810e1f27547d388406da610affected
c2017260eea2db62e7bb1b7cbb1759f1d11ed067< 21c0d469349957b5dc811c41200a2a998996ca8daffected
c2017260eea2db62e7bb1b7cbb1759f1d11ed067< 0c4eed901285b9cae36a622f32bea3e92490da6caffected
c2017260eea2db62e7bb1b7cbb1759f1d11ed067< 03cbbd7c2f5ee288f648f4aeedc765a181188553affected
5.1affected
< 5.1unaffected
5.15.46≤ 5.15.*unaffected
5.17.14≤ 5.17.*unaffected
… +2 more rows
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I. Basic Information for CVE-2022-49536

Vulnerability Information
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Vulnerability Title
scsi: lpfc: Fix SCSI I/O completion and abort handler deadlock
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix SCSI I/O completion and abort handler deadlock During stress I/O tests with 500+ vports, hard LOCKUP call traces are observed. CPU A: native_queued_spin_lock_slowpath+0x192 _raw_spin_lock_irqsave+0x32 lpfc_handle_fcp_err+0x4c6 lpfc_fcp_io_cmd_wqe_cmpl+0x964 lpfc_sli4_fp_handle_cqe+0x266 __lpfc_sli4_process_cq+0x105 __lpfc_sli4_hba_process_cq+0x3c lpfc_cq_poll_hdler+0x16 irq_poll_softirq+0x76 __softirqentry_text_start+0xe4 irq_exit+0xf7 do_IRQ+0x7f CPU B: native_queued_spin_lock_slowpath+0x5b _raw_spin_lock+0x1c lpfc_abort_handler+0x13e scmd_eh_abort_handler+0x85 process_one_work+0x1a7 worker_thread+0x30 kthread+0x112 ret_from_fork+0x1f Diagram of lockup: CPUA CPUB ---- ---- lpfc_cmd->buf_lock phba->hbalock lpfc_cmd->buf_lock phba->hbalock Fix by reordering the taking of the lpfc_cmd->buf_lock and phba->hbalock in lpfc_abort_handler routine so that it tries to take the lpfc_cmd->buf_lock first before phba->hbalock.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于SCSI I/O完成和终止处理程序之间的死锁。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
LinuxLinux c2017260eea2db62e7bb1b7cbb1759f1d11ed067 ~ 7625e81de2164a082810e1f27547d388406da610 -
LinuxLinux 5.1 -

II. Public POCs for CVE-2022-49536

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III. Intelligence Information for CVE-2022-49536

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Patches & Fixes for CVE-2022-49536 (4)

Same Patch Batch · Linux · 2025-02-26 · 706 CVEs total

CVE-2022-491499.8 CRITICALrxrpc: Fix call timer start racing with call destruction
CVE-2022-492019.8 CRITICALibmvnic: fix race between xmit and reset
CVE-2022-491949.8 CRITICALnet: bcmgenet: Use stronger register read/writes to assure ordering
CVE-2022-490939.8 CRITICALskbuff: fix coalescing for page_pool fragment recycling
CVE-2022-490949.8 CRITICALnet/tls: fix slab-out-of-bounds bug in decrypt_internal
CVE-2022-494079.8 CRITICALdlm: fix plock invalid read
CVE-2022-493629.8 CRITICALNFSD: Fix potential use-after-free in nfsd_file_put()
CVE-2022-492609.8 CRITICALcrypto: hisilicon/sec - fix the aead software fallback for engine
CVE-2022-494189.8 CRITICALNFSv4: Fix free of uninitialized nfs4_label on referral lookup.
CVE-2022-492809.8 CRITICALNFSD: prevent underflow in nfssvc_decode_writeargs()
CVE-2022-493569.8 CRITICALSUNRPC: Trap RDMA segment overflows
CVE-2022-495619.8 CRITICALnetfilter: conntrack: re-fetch conntrack after insertion
CVE-2022-490589.1 CRITICALcifs: potential buffer overflow in handling symlinks
CVE-2022-494708.8 HIGHBluetooth: btmtksdio: fix use-after-free at btmtksdio_recv_event
CVE-2022-494798.8 HIGHmt76: fix tx status related use-after-free race on station removal
CVE-2022-495358.8 HIGHscsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI
CVE-2022-493288.8 HIGHmt76: fix use-after-free by removing a non-RCU wcid pointer
CVE-2022-495198.8 HIGHath10k: skip ath10k_halt during suspend for driver state RESTARTING
CVE-2022-495008.8 HIGHwl1251: dynamically allocate memory used for DMA
CVE-2022-491148.8 HIGHscsi: libfc: Fix use after free in fc_exch_abts_resp()

Showing top 20 of 706 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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