CVE-2022-50475— RDMA/core: Make sure "ib_port" is valid when access sysfs node
Affected Version Matrix 10
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | d8a5883814b9f7c08d7ff291070687d925b4f859< f981c697b2f9bd5dd2f060e47ff8b5e0a2cd0c06 | affected |
d8a5883814b9f7c08d7ff291070687d925b4f859< ac7a7d7079124f46180714b2d41a1703d37101bb | affected | ||
d8a5883814b9f7c08d7ff291070687d925b4f859< cd06d32a71fbb198b2d43dddf794badd80ffd25d | affected | ||
d8a5883814b9f7c08d7ff291070687d925b4f859< 5e15ff29b156bbbdeadae230c8ecd5ecd8ca2477 | affected | ||
5.14 | affected | ||
< 5.14 | unaffected | ||
5.15.86≤ 5.15.* | unaffected | ||
6.0.16≤ 6.0.* | unaffected | ||
| … +2 more rows | |||
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I. Basic Information for CVE-2022-50475
Vulnerability Information
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Vulnerability Title
RDMA/core: Make sure "ib_port" is valid when access sysfs node
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Make sure "ib_port" is valid when access sysfs node The "ib_port" structure must be set before adding the sysfs kobject, and reset after removing it, otherwise it may crash when accessing the sysfs node: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000050 Mem abort info: ESR = 0x96000006 Exception class = DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgdp = 00000000e85f5ba5 [0000000000000050] pgd=0000000848fd9003, pud=000000085b387003, pmd=0000000000000000 Internal error: Oops: 96000006 [#2] PREEMPT SMP Modules linked in: ib_umad(O) mlx5_ib(O) nfnetlink_cttimeout(E) nfnetlink(E) act_gact(E) cls_flower(E) sch_ingress(E) openvswitch(E) nsh(E) nf_nat_ipv6(E) nf_nat_ipv4(E) nf_conncount(E) nf_nat(E) nf_conntrack(E) nf_defrag_ipv6(E) nf_defrag_ipv4(E) mst_pciconf(O) ipmi_devintf(E) ipmi_msghandler(E) ipmb_dev_int(OE) mlx5_core(O) mlxfw(O) mlxdevm(O) auxiliary(O) ib_uverbs(O) ib_core(O) mlx_compat(O) psample(E) sbsa_gwdt(E) uio_pdrv_genirq(E) uio(E) mlxbf_pmc(OE) mlxbf_gige(OE) mlxbf_tmfifo(OE) gpio_mlxbf2(OE) pwr_mlxbf(OE) mlx_trio(OE) i2c_mlxbf(OE) mlx_bootctl(OE) bluefield_edac(OE) knem(O) ip_tables(E) ipv6(E) crc_ccitt(E) [last unloaded: mst_pci] Process grep (pid: 3372, stack limit = 0x0000000022055c92) CPU: 5 PID: 3372 Comm: grep Tainted: G D OE 4.19.161-mlnx.47.gadcd9e3 #1 Hardware name: https://www.mellanox.com BlueField SoC/BlueField SoC, BIOS BlueField:3.9.2-15-ga2403ab Sep 8 2022 pstate: 40000005 (nZcv daif -PAN -UAO) pc : hw_stat_port_show+0x4c/0x80 [ib_core] lr : port_attr_show+0x40/0x58 [ib_core] sp : ffff000029f43b50 x29: ffff000029f43b50 x28: 0000000019375000 x27: ffff8007b821a540 x26: ffff000029f43e30 x25: 0000000000008000 x24: ffff000000eaa958 x23: 0000000000001000 x22: ffff8007a4ce3000 x21: ffff8007baff8000 x20: ffff8007b9066ac0 x19: ffff8007bae97578 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 x8 : ffff8007a4ce4000 x7 : 0000000000000000 x6 : 000000000000003f x5 : ffff000000e6a280 x4 : ffff8007a4ce3000 x3 : 0000000000000000 x2 : aaaaaaaaaaaaaaab x1 : ffff8007b9066a10 x0 : ffff8007baff8000 Call trace: hw_stat_port_show+0x4c/0x80 [ib_core] port_attr_show+0x40/0x58 [ib_core] sysfs_kf_seq_show+0x8c/0x150 kernfs_seq_show+0x44/0x50 seq_read+0x1b4/0x45c kernfs_fop_read+0x148/0x1d8 __vfs_read+0x58/0x180 vfs_read+0x94/0x154 ksys_read+0x68/0xd8 __arm64_sys_read+0x28/0x34 el0_svc_common+0x88/0x18c el0_svc_handler+0x78/0x94 el0_svc+0x8/0xe8 Code: f2955562 aa1603e4 aa1503e0 f9405683 (f9402861)
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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ib_port结构设置不当，可能导致空指针取消引用。
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
II. Public POCs for CVE-2022-50475
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Linux · 2025-10-04 · 144 CVEs total
| CVE-2025-39946 | 9.8 CRITICAL | tls: make sure to abort the stream if headers are bogus |
| CVE-2022-50491 | coresight: cti: Fix hang in cti_disable_hw() | |
| CVE-2023-53581 | net/mlx5e: Check for NOT_READY flag state after locking | |
| CVE-2023-53580 | USB: Gadget: core: Help prevent panic during UVC unconfigure | |
| CVE-2022-50507 | fs/ntfs3: Validate data run offset | |
| CVE-2022-50508 | wifi: mt76: mt76x0: fix oob access in mt76x0_phy_get_target_power | |
| CVE-2022-50506 | drbd: only clone bio if we have a backing device | |
| CVE-2022-50504 | powerpc/rtas: avoid scheduling in rtas_os_term() | |
| CVE-2022-50505 | iommu/amd: Fix pci device refcount leak in ppr_notifier() | |
| CVE-2022-50503 | mtd: lpddr2_nvm: Fix possible null-ptr-deref | |
| CVE-2022-50501 | media: coda: Add check for dcoda_iram_alloc | |
| CVE-2022-50500 | netdevsim: fix memory leak in nsim_drv_probe() when nsim_dev_resources_register() failed | |
| CVE-2022-50499 | media: dvb-core: Fix double free in dvb_register_device() | |
| CVE-2022-50497 | binfmt_misc: fix shift-out-of-bounds in check_special_flags | |
| CVE-2022-50498 | eth: alx: take rtnl_lock on resume | |
| CVE-2022-50496 | dm cache: Fix UAF in destroy() | |
| CVE-2022-50494 | thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash | |
| CVE-2022-50493 | scsi: qla2xxx: Fix crash when I/O abort times out | |
| CVE-2022-50492 | drm/msm: fix use-after-free on probe deferral | |
| CVE-2023-53572 | clk: imx: scu: use _safe list iterator to avoid a use after free |
Showing top 20 of 144 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
Same vendor: Linux
- CVE-2026-46333
ptrace: slightly saner 'get_dumpable()' logic - CVE-2026-43490
ksmbd: validate inherited ACE SID length - CVE-2026-43489
liveupdate: luo_file: remember retrieve() status - CVE-2026-43487
ata: libata-core: Disable LPM on ST1000DM010-2EP102 - CVE-2026-43488
usb: xhci: Prevent interrupt storm on host controller error
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