cbcvebase.
CVE-2024-47692
published 2024-10-21

CVE-2024-47692: In the Linux kernel, the following vulnerability has been resolved: nfsd: return -EINVAL when namelen is 0 When we have a corrupted main.sqlite in…

PriorityP434medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
1.16%
64.0th percentile
In the Linux kernel, the following vulnerability has been resolved: nfsd: return -EINVAL when namelen is 0 When we have a corrupted main.sqlite in /var/lib/nfs/nfsdcld/, it may result in namelen being 0, which will cause memdup_user() to return ZERO_SIZE_PTR. When we access the name.data that has been assigned the value of ZERO_SIZE_PTR in nfs4_client_to_reclaim(), null pointer dereference is triggered. [ T1205] ================================================================== [ T1205] BUG: KASAN: null-ptr-deref in nfs4_client_to_reclaim+0xe9/0x260 [ T1205] Read of size 1 at addr 0000000000000010 by task nfsdcld/1205 [ T1205] [ T1205] CPU: 11 PID: 1205 Comm: nfsdcld Not tainted 5.10.0-00003-g2c1423731b8d #406 [ T1205] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ?-20190727_073836-buildvm-ppc64le-16.ppc.fedoraproject.org-3.fc31 04/01/2014 [ T1205] Call Trace: [ T1205] dump_stack+0x9a/0xd0 [ T1205] ? nfs4_client_to_reclaim+0xe9/0x260 [ T1205] __kasan_report.cold+0x34/0x84 [ T1205] ? nfs4_client_to_reclaim+0xe9/0x260 [ T1205] kasan_report+0x3a/0x50 [ T1205] nfs4_client_to_reclaim+0xe9/0x260 [ T1205] ? nfsd4_release_lockowner+0x410/0x410 [ T1205] cld_pipe_downcall+0x5ca/0x760 [ T1205] ? nfsd4_cld_tracking_exit+0x1d0/0x1d0 [ T1205] ? down_write_killable_nested+0x170/0x170 [ T1205] ? avc_policy_seqno+0x28/0x40 [ T1205] ? selinux_file_permission+0x1b4/0x1e0 [ T1205] rpc_pipe_write+0x84/0xb0 [ T1205] vfs_write+0x143/0x520 [ T1205] ksys_write+0xc9/0x170 [ T1205] ? __ia32_sys_read+0x50/0x50 [ T1205] ? ktime_get_coarse_real_ts64+0xfe/0x110 [ T1205] ? ktime_get_coarse_real_ts64+0xa2/0x110 [ T1205] do_syscall_64+0x33/0x40 [ T1205] entry_SYSCALL_64_after_hwframe+0x67/0xd1 [ T1205] RIP: 0033:0x7fdbdb761bc7 [ T1205] Code: 0f 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 3d 00 f0 ff ff 77 514 [ T1205] RSP: 002b:00007fff8c4b7248 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ T1205] RAX: fff

Affected

33 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.115-1 (bookworm)linux 6.1.115-1 (bookworm)
debianlinux-6.1< linux 6.1.115-1 (bookworm)linux 6.1.115-1 (bookworm)
linuxlinux
linuxlinux>= 74725959c33c14114fdce1e36e3504d106584d53 < 6d07040ae5c2214e39c7444d898039c9e655a79a6d07040ae5c2214e39c7444d898039c9e655a79a
linuxlinux>= 74725959c33c14114fdce1e36e3504d106584d53 < 0f1d007bbea38a61cf9c5392708dc70ae9d84a3d0f1d007bbea38a61cf9c5392708dc70ae9d84a3d
linuxlinux>= 74725959c33c14114fdce1e36e3504d106584d53 < b7b7a8df41ef18862dd6b22289fb46c2c12398afb7b7a8df41ef18862dd6b22289fb46c2c12398af
linuxlinux>= 74725959c33c14114fdce1e36e3504d106584d53 < 84a563d136faf514fdad1ade28d7a142fd313cb884a563d136faf514fdad1ade28d7a142fd313cb8
linuxlinux>= 74725959c33c14114fdce1e36e3504d106584d53 < 318f70857caab3da9a6ada9bc8c1f4f7591b695e318f70857caab3da9a6ada9bc8c1f4f7591b695e
linuxlinux>= 74725959c33c14114fdce1e36e3504d106584d53 < 766d5fbd78f7a52b3888449a0358760477b74602766d5fbd78f7a52b3888449a0358760477b74602
linuxlinux>= 74725959c33c14114fdce1e36e3504d106584d53 < 1ff8be8d008b9ddc8e7043fbddd37d5d451b271b1ff8be8d008b9ddc8e7043fbddd37d5d451b271b
linuxlinux>= 74725959c33c14114fdce1e36e3504d106584d53 < 22451a16b7ab7debefce660672566be887db163722451a16b7ab7debefce660672566be887db1637
linuxlinux_kernel>= 0 < 5.10.234-15.10.234-1
linuxlinux_kernel>= 0 < 6.1.115-16.1.115-1
linuxlinux_kernel>= 0 < 6.11.2-16.11.2-1
linuxlinux_kernel>= 0 < 6.11.2-16.11.2-1
linuxlinux_kernel>= 0 < 5.4.0-208.2285.4.0-208.228
linuxlinux_kernel>= 0 < 5.15.0-127.1375.15.0-127.137
linuxlinux_kernel>= 0 < 6.8.0-54.566.8.0-54.56
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 5.11 < 5.15.1685.15.168
linuxlinux_kernel>= 5.16 < 6.1.1136.1.113
linuxlinux_kernel>= 5.2 < 5.10.2275.10.227
linuxlinux_kernel>= 6.11 < 6.11.26.11.2
linuxlinux_kernel>= 6.2 < 6.6.546.6.54
linuxlinux_kernel>= 6.7 < 6.10.136.10.13

CVSS provenance

nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian6.5MEDIUM
vendor_msrc6.5MEDIUM
vendor_redhat6.5MEDIUM
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.