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CVE-2022-48726— RDMA/ucma: Protect mc during concurrent multicast leaves

EPSS 0.02% · P5

Affected Version Matrix 10

VendorProductVersion RangeStatus
LinuxLinux95fe51096b7adf1d1e7315c49c75e2f75f162584< 75c610212b9f1756b9384911d3a2c347eee8031caffected
95fe51096b7adf1d1e7315c49c75e2f75f162584< 2923948ffe0835f7114e948b35bcc42bc9b3baa1affected
95fe51096b7adf1d1e7315c49c75e2f75f162584< ee2477e8ccd3d978eeac0dc5a981b286d9bb7b0aaffected
95fe51096b7adf1d1e7315c49c75e2f75f162584< 36e8169ec973359f671f9ec7213547059cae972eaffected
5.10affected
< 5.10unaffected
5.10.99≤ 5.10.*unaffected
5.15.22≤ 5.15.*unaffected
… +2 more rows
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I. Basic Information for CVE-2022-48726

Vulnerability Information
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Vulnerability Title
RDMA/ucma: Protect mc during concurrent multicast leaves
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/ucma: Protect mc during concurrent multicast leaves Partially revert the commit mentioned in the Fixes line to make sure that allocation and erasing multicast struct are locked. BUG: KASAN: use-after-free in ucma_cleanup_multicast drivers/infiniband/core/ucma.c:491 [inline] BUG: KASAN: use-after-free in ucma_destroy_private_ctx+0x914/0xb70 drivers/infiniband/core/ucma.c:579 Read of size 8 at addr ffff88801bb74b00 by task syz-executor.1/25529 CPU: 0 PID: 25529 Comm: syz-executor.1 Not tainted 5.16.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_address_description.constprop.0.cold+0x8d/0x320 mm/kasan/report.c:247 __kasan_report mm/kasan/report.c:433 [inline] kasan_report.cold+0x83/0xdf mm/kasan/report.c:450 ucma_cleanup_multicast drivers/infiniband/core/ucma.c:491 [inline] ucma_destroy_private_ctx+0x914/0xb70 drivers/infiniband/core/ucma.c:579 ucma_destroy_id+0x1e6/0x280 drivers/infiniband/core/ucma.c:614 ucma_write+0x25c/0x350 drivers/infiniband/core/ucma.c:1732 vfs_write+0x28e/0xae0 fs/read_write.c:588 ksys_write+0x1ee/0x250 fs/read_write.c:643 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 Currently the xarray search can touch a concurrently freeing mc as the xa_for_each() is not surrounded by any lock. Rather than hold the lock for a full scan hold it only for the effected items, which is usually an empty list.
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。目前尚无此漏洞的相关信息，请随时关注CNNVD或厂商公告。
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 95fe51096b7adf1d1e7315c49c75e2f75f162584 ~ 75c610212b9f1756b9384911d3a2c347eee8031c -
LinuxLinux 5.10 -

II. Public POCs for CVE-2022-48726

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III. Intelligence Information for CVE-2022-48726

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Same Patch Batch · Linux · 2024-06-20 · 67 CVEs total

CVE-2022-48751net/smc: Transitional solution for clcsock race issue
CVE-2022-48770bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()
CVE-2022-48768tracing/histogram: Fix a potential memory leak for kstrdup()
CVE-2022-48769efi: runtime: avoid EFIv2 runtime services on Apple x86 machines
CVE-2022-48757net: fix information leakage in /proc/net/ptype
CVE-2022-48756drm/msm/dsi: invalid parameter check in msm_dsi_phy_enable
CVE-2022-48755powerpc64/bpf: Limit 'ldbrx' to processors compliant with ISA v2.06
CVE-2022-48754phylib: fix potential use-after-free
CVE-2022-48753block: fix memory leak in disk_register_independent_access_ranges
CVE-2022-48752powerpc/perf: Fix power_pmu_disable to call clear_pmi_irq_pending only if PMI is pending
CVE-2022-48758scsi: bnx2fc: Flush destroy_work queue before calling bnx2fc_interface_put()
CVE-2022-48750hwmon: (nct6775) Fix crash in clear_caseopen
CVE-2022-48748net: bridge: vlan: fix memory leak in __allowed_ingress
CVE-2022-48749drm/msm/dpu: invalid parameter check in dpu_setup_dspp_pcc
CVE-2022-48747block: Fix wrong offset in bio_truncate()
CVE-2022-48745net/mlx5: Use del_timer_sync in fw reset flow of halting poll
CVE-2022-48746net/mlx5e: Fix handling of wrong devices during bond netevent
CVE-2022-48744net/mlx5e: Avoid field-overflowing memcpy()
CVE-2022-48743net: amd-xgbe: Fix skb data length underflow
CVE-2022-48742rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink()

Showing top 20 of 67 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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