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CVE-2024-35902— net/rds: fix possible cp null dereference

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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，该漏洞源于空指针取消引用。

AI Predicted 5.5 Difficulty: Hard EPSS 0.22% · P12

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 26

VendorProduct Version RangeStatus
Linux Linux 786854141057751bc08eb26f1b02e97c1631c8f4< d275de8ea7be3a453629fddae41d4156762e814c affected
997efea2bf3a4adb96c306b9ad6a91442237bf5b< bcd46782e2ec3825d10c1552fcb674d491cc09f9 affected
9dfc15a10dfd44f8ff7f27488651cb5be6af83c2< cfb786b03b03c5ff38882bee38525eb9987e4d14 affected
b562ebe21ed9adcf42242797dd6cb75beef12bf0< d49fac38479bfdaec52b3ea274d290c47a294029 affected
998fd719e6d6468b930ac0c44552ea9ff8b07b80< cbaac2e5488ed54833897264a5ffb2a341a9f196 affected
2b505d05280739ce31d5708da840f42df827cb85< 92309bed3c5fbe2ccd4c45056efd42edbd06162d affected
c055fc00c07be1f0df7375ab0036cebd1106ed38< 6794090c742008c53b344b35b021d4a3093dc50a affected
c055fc00c07be1f0df7375ab0036cebd1106ed38< 62fc3357e079a07a22465b9b6ef71bb6ea75ee4b affected
… +18 more rows
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I. Basic Information for CVE-2024-35902

Vulnerability Information
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Vulnerability Title
net/rds: fix possible cp null dereference
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net/rds: fix possible cp null dereference cp might be null, calling cp->cp_conn would produce null dereference [Simon Horman adds:] Analysis: * cp is a parameter of __rds_rdma_map and is not reassigned. * The following call-sites pass a NULL cp argument to __rds_rdma_map() - rds_get_mr() - rds_get_mr_for_dest * Prior to the code above, the following assumes that cp may be NULL (which is indicative, but could itself be unnecessary) trans_private = rs->rs_transport->get_mr( sg, nents, rs, &mr->r_key, cp ? cp->cp_conn : NULL, args->vec.addr, args->vec.bytes, need_odp ? ODP_ZEROBASED : ODP_NOT_NEEDED); * The code modified by this patch is guarded by IS_ERR(trans_private), where trans_private is assigned as per the previous point in this analysis. The only implementation of get_mr that I could locate is rds_ib_get_mr() which can return an ERR_PTR if the conn (4th) argument is NULL. * ret is set to PTR_ERR(trans_private). rds_ib_get_mr can return ERR_PTR(-ENODEV) if the conn (4th) argument is NULL. Thus ret may be -ENODEV in which case the code in question will execute. Conclusion: * cp may be NULL at the point where this patch adds a check; this patch does seem to address a possible bug
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 786854141057751bc08eb26f1b02e97c1631c8f4 ~ d275de8ea7be3a453629fddae41d4156762e814c -
Linux Linux 6.8 -

II. Public POCs for CVE-2024-35902

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III. Intelligence Information for CVE-2024-35902

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Mailing List Discussions for CVE-2024-35902 (2)

Other References for CVE-2024-35902 (8)

Same Patch Batch · Linux · 2024-05-19 · 82 CVEs total

CVE-2024-35861 9.8 CRITICAL smb: client: fix potential UAF in cifs_signal_cifsd_for_reconnect()
CVE-2024-35862 9.8 CRITICAL smb: client: fix potential UAF in smb2_is_network_name_deleted()
CVE-2024-35863 9.8 CRITICAL smb: client: fix potential UAF in is_valid_oplock_break()
CVE-2024-35864 9.8 CRITICAL smb: client: fix potential UAF in smb2_is_valid_lease_break()
CVE-2024-35865 9.8 CRITICAL smb: client: fix potential UAF in smb2_is_valid_oplock_break()
CVE-2024-35884 9.8 CRITICAL udp: do not accept non-tunnel GSO skbs landing in a tunnel
CVE-2024-35870 9.8 CRITICAL smb: client: fix UAF in smb2_reconnect_server()
CVE-2024-35869 9.8 CRITICAL smb: client: guarantee refcounted children from parent session
CVE-2024-35939 9.3 CRITICAL dma-direct: Leak pages on dma_set_decrypted() failure
CVE-2024-35887 8.8 HIGH ax25: fix use-after-free bugs caused by ax25_ds_del_timer
CVE-2024-35915 8.8 HIGH nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet
CVE-2024-35889 8.6 HIGH idpf: fix kernel panic on unknown packet types
CVE-2024-35875 8.4 HIGH x86/coco: Require seeding RNG with RDRAND on CoCo systems
CVE-2024-35937 8.1 HIGH wifi: cfg80211: check A-MSDU format more carefully
CVE-2024-35919 7.8 HIGH media: mediatek: vcodec: adding lock to protect encoder context list
CVE-2024-35931 7.8 HIGH drm/amdgpu: Skip do PCI error slot reset during RAS recovery
CVE-2024-35890 7.8 HIGH gro: fix ownership transfer
CVE-2024-35920 7.8 HIGH media: mediatek: vcodec: adding lock to protect decoder context list
CVE-2024-35921 7.8 HIGH media: mediatek: vcodec: Fix oops when HEVC init fails
CVE-2024-35897 7.8 HIGH netfilter: nf_tables: discard table flag update with pending basechain deletion

Showing top 20 of 82 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-35902

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