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CVE-2024-26766— Linux kernel 安全漏洞

EPSS 0.01% · P1
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I. CVE-2024-26766の基本情報

脆弱性情報
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脆弱性タイトル
IB/hfi1: Fix sdma.h tx->num_descs off-by-one error
ソース: NVD (National Vulnerability Database)
脆弱性説明
In the Linux kernel, the following vulnerability has been resolved: IB/hfi1: Fix sdma.h tx->num_descs off-by-one error Unfortunately the commit `fd8958efe877` introduced another error causing the `descs` array to overflow. This reults in further crashes easily reproducible by `sendmsg` system call. [ 1080.836473] general protection fault, probably for non-canonical address 0x400300015528b00a: 0000 [#1] PREEMPT SMP PTI [ 1080.869326] RIP: 0010:hfi1_ipoib_build_ib_tx_headers.constprop.0+0xe1/0x2b0 [hfi1] -- [ 1080.974535] Call Trace: [ 1080.976990] <TASK> [ 1081.021929] hfi1_ipoib_send_dma_common+0x7a/0x2e0 [hfi1] [ 1081.027364] hfi1_ipoib_send_dma_list+0x62/0x270 [hfi1] [ 1081.032633] hfi1_ipoib_send+0x112/0x300 [hfi1] [ 1081.042001] ipoib_start_xmit+0x2a9/0x2d0 [ib_ipoib] [ 1081.046978] dev_hard_start_xmit+0xc4/0x210 -- [ 1081.148347] __sys_sendmsg+0x59/0xa0 crash> ipoib_txreq 0xffff9cfeba229f00 struct ipoib_txreq { txreq = { list = { next = 0xffff9cfeba229f00, prev = 0xffff9cfeba229f00 }, descp = 0xffff9cfeba229f40, coalesce_buf = 0x0, wait = 0xffff9cfea4e69a48, complete = 0xffffffffc0fe0760 <hfi1_ipoib_sdma_complete>, packet_len = 0x46d, tlen = 0x0, num_desc = 0x0, desc_limit = 0x6, next_descq_idx = 0x45c, coalesce_idx = 0x0, flags = 0x0, descs = {{ qw = {0x8024000120dffb00, 0x4} # SDMA_DESC0_FIRST_DESC_FLAG (bit 63) }, { qw = { 0x3800014231b108, 0x4} }, { qw = { 0x310000e4ee0fcf0, 0x8} }, { qw = { 0x3000012e9f8000, 0x8} }, { qw = { 0x59000dfb9d0000, 0x8} }, { qw = { 0x78000e02e40000, 0x8} }} }, sdma_hdr = 0x400300015528b000, <<< invalid pointer in the tx request structure sdma_status = 0x0, SDMA_DESC0_LAST_DESC_FLAG (bit 62) complete = 0x0, priv = 0x0, txq = 0xffff9cfea4e69880, skb = 0xffff9d099809f400 } If an SDMA send consists of exactly 6 descriptors and requires dword padding (in the 7th descriptor), the sdma_txreq descriptor array is not properly expanded and the packet will overflow into the container structure. This results in a panic when the send completion runs. The exact panic varies depending on what elements of the container structure get corrupted. The fix is to use the correct expression in _pad_sdma_tx_descs() to test the need to expand the descriptor array. With this patch the crashes are no longer reproducible and the machine is stable.
ソース: NVD (National Vulnerability Database)
CVSS情報
N/A
ソース: NVD (National Vulnerability Database)
脆弱性タイプ
N/A
ソース: NVD (National Vulnerability Database)
脆弱性タイトル
Linux kernel 安全漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
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，该漏洞源于存在数组溢出。
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)

影響を受ける製品

ベンダープロダクト影響を受けるバージョンCPE購読
LinuxLinux d1c1ee052d25ca23735eea912f843bc7834781b4 ~ 115b7f3bc1dce590a6851a2dcf23dc1100c49790 -
LinuxLinux 6.3 -

II. CVE-2024-26766の公開POC

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III. CVE-2024-26766のインテリジェンス情報

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Same Patch Batch · Linux · 2024-04-03 · 94 CVEs total

CVE-2024-26743RDMA/qedr: Fix qedr_create_user_qp error flow
CVE-2024-26740net/sched: act_mirred: use the backlog for mirred ingress
CVE-2024-26738powerpc/pseries/iommu: DLPAR add doesn't completely initialize pci_controller
CVE-2024-26734devlink: fix possible use-after-free and memory leaks in devlink_init()
CVE-2024-26733arp: Prevent overflow in arp_req_get().
CVE-2024-26732net: implement lockless setsockopt(SO_PEEK_OFF)
CVE-2024-26731bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()
CVE-2024-26730hwmon: (nct6775) Fix access to temperature configuration registers
CVE-2024-26735ipv6: sr: fix possible use-after-free and null-ptr-deref
CVE-2024-26742scsi: smartpqi: Fix disable_managed_interrupts
CVE-2024-26741dccp/tcp: Unhash sk from ehash for tb2 alloc failure after check_estalblished().
CVE-2024-26744RDMA/srpt: Support specifying the srpt_service_guid parameter
CVE-2024-26747usb: roles: fix NULL pointer issue when put module's reference
CVE-2024-26748usb: cdns3: fix memory double free when handle zero packet
CVE-2024-26749usb: cdns3: fixed memory use after free at cdns3_gadget_ep_disable()
CVE-2024-26751ARM: ep93xx: Add terminator to gpiod_lookup_table
CVE-2024-26752l2tp: pass correct message length to ip6_append_data
CVE-2024-26753crypto: virtio/akcipher - Fix stack overflow on memcpy
CVE-2024-26754gtp: fix use-after-free and null-ptr-deref in gtp_genl_dump_pdp()
CVE-2024-26755md: Don't suspend the array for interrupted reshape

Showing 20 of 94 CVEs. View all on vendor page →

IV. 関連脆弱性

同じ製品: Linux
同じベンダー: Linux

V. CVE-2024-26766へのコメント

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