GHSA-VCRJ-5576-FC99
Vulnerability from github – Published: 2024-10-21 18:30 – Updated: 2025-11-04 00:31In the Linux kernel, the following vulnerability has been resolved:
nfsd: map the EBADMSG to nfserr_io to avoid warning
Ext4 will throw -EBADMSG through ext4_readdir when a checksum error occurs, resulting in the following WARNING.
Fix it by mapping EBADMSG to nfserr_io.
nfsd_buffered_readdir iterate_dir // -EBADMSG -74 ext4_readdir // .iterate_shared ext4_dx_readdir ext4_htree_fill_tree htree_dirblock_to_tree ext4_read_dirblock __ext4_read_dirblock ext4_dirblock_csum_verify warn_no_space_for_csum __warn_no_space_for_csum return ERR_PTR(-EFSBADCRC) // -EBADMSG -74 nfserrno // WARNING
[ 161.115610] ------------[ cut here ]------------ [ 161.116465] nfsd: non-standard errno: -74 [ 161.117315] WARNING: CPU: 1 PID: 780 at fs/nfsd/nfsproc.c:878 nfserrno+0x9d/0xd0 [ 161.118596] Modules linked in: [ 161.119243] CPU: 1 PID: 780 Comm: nfsd Not tainted 5.10.0-00014-g79679361fd5d #138 [ 161.120684] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qe mu.org 04/01/2014 [ 161.123601] RIP: 0010:nfserrno+0x9d/0xd0 [ 161.124676] Code: 0f 87 da 30 dd 00 83 e3 01 b8 00 00 00 05 75 d7 44 89 ee 48 c7 c7 c0 57 24 98 89 44 24 04 c6 05 ce 2b 61 03 01 e8 99 20 d8 00 <0f> 0b 8b 44 24 04 eb b5 4c 89 e6 48 c7 c7 a0 6d a4 99 e8 cc 15 33 [ 161.127797] RSP: 0018:ffffc90000e2f9c0 EFLAGS: 00010286 [ 161.128794] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 161.130089] RDX: 1ffff1103ee16f6d RSI: 0000000000000008 RDI: fffff520001c5f2a [ 161.131379] RBP: 0000000000000022 R08: 0000000000000001 R09: ffff8881f70c1827 [ 161.132664] R10: ffffed103ee18304 R11: 0000000000000001 R12: 0000000000000021 [ 161.133949] R13: 00000000ffffffb6 R14: ffff8881317c0000 R15: ffffc90000e2fbd8 [ 161.135244] FS: 0000000000000000(0000) GS:ffff8881f7080000(0000) knlGS:0000000000000000 [ 161.136695] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 161.137761] CR2: 00007fcaad70b348 CR3: 0000000144256006 CR4: 0000000000770ee0 [ 161.139041] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 161.140291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 161.141519] PKRU: 55555554 [ 161.142076] Call Trace: [ 161.142575] ? __warn+0x9b/0x140 [ 161.143229] ? nfserrno+0x9d/0xd0 [ 161.143872] ? report_bug+0x125/0x150 [ 161.144595] ? handle_bug+0x41/0x90 [ 161.145284] ? exc_invalid_op+0x14/0x70 [ 161.146009] ? asm_exc_invalid_op+0x12/0x20 [ 161.146816] ? nfserrno+0x9d/0xd0 [ 161.147487] nfsd_buffered_readdir+0x28b/0x2b0 [ 161.148333] ? nfsd4_encode_dirent_fattr+0x380/0x380 [ 161.149258] ? nfsd_buffered_filldir+0xf0/0xf0 [ 161.150093] ? wait_for_concurrent_writes+0x170/0x170 [ 161.151004] ? generic_file_llseek_size+0x48/0x160 [ 161.151895] nfsd_readdir+0x132/0x190 [ 161.152606] ? nfsd4_encode_dirent_fattr+0x380/0x380 [ 161.153516] ? nfsd_unlink+0x380/0x380 [ 161.154256] ? override_creds+0x45/0x60 [ 161.155006] nfsd4_encode_readdir+0x21a/0x3d0 [ 161.155850] ? nfsd4_encode_readlink+0x210/0x210 [ 161.156731] ? write_bytes_to_xdr_buf+0x97/0xe0 [ 161.157598] ? __write_bytes_to_xdr_buf+0xd0/0xd0 [ 161.158494] ? lock_downgrade+0x90/0x90 [ 161.159232] ? nfs4svc_decode_voidarg+0x10/0x10 [ 161.160092] nfsd4_encode_operation+0x15a/0x440 [ 161.160959] nfsd4_proc_compound+0x718/0xe90 [ 161.161818] nfsd_dispatch+0x18e/0x2c0 [ 161.162586] svc_process_common+0x786/0xc50 [ 161.163403] ? nfsd_svc+0x380/0x380 [ 161.164137] ? svc_printk+0x160/0x160 [ 161.164846] ? svc_xprt_do_enqueue.part.0+0x365/0x380 [ 161.165808] ? nfsd_svc+0x380/0x380 [ 161.166523] ? rcu_is_watching+0x23/0x40 [ 161.167309] svc_process+0x1a5/0x200 [ 161.168019] nfsd+0x1f5/0x380 [ 161.168663] ? nfsd_shutdown_threads+0x260/0x260 [ 161.169554] kthread+0x1c4/0x210 [ 161.170224] ? kthread_insert_work_sanity_check+0x80/0x80 [ 161.171246] ret_from_fork+0x1f/0x30
{
"affected": [],
"aliases": [
"CVE-2024-49875"
],
"database_specific": {
"cwe_ids": [
"CWE-354"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-21T18:15:09Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: map the EBADMSG to nfserr_io to avoid warning\n\nExt4 will throw -EBADMSG through ext4_readdir when a checksum error\noccurs, resulting in the following WARNING.\n\nFix it by mapping EBADMSG to nfserr_io.\n\nnfsd_buffered_readdir\n iterate_dir // -EBADMSG -74\n ext4_readdir // .iterate_shared\n ext4_dx_readdir\n ext4_htree_fill_tree\n htree_dirblock_to_tree\n ext4_read_dirblock\n __ext4_read_dirblock\n ext4_dirblock_csum_verify\n warn_no_space_for_csum\n __warn_no_space_for_csum\n return ERR_PTR(-EFSBADCRC) // -EBADMSG -74\n nfserrno // WARNING\n\n[ 161.115610] ------------[ cut here ]------------\n[ 161.116465] nfsd: non-standard errno: -74\n[ 161.117315] WARNING: CPU: 1 PID: 780 at fs/nfsd/nfsproc.c:878 nfserrno+0x9d/0xd0\n[ 161.118596] Modules linked in:\n[ 161.119243] CPU: 1 PID: 780 Comm: nfsd Not tainted 5.10.0-00014-g79679361fd5d #138\n[ 161.120684] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qe\nmu.org 04/01/2014\n[ 161.123601] RIP: 0010:nfserrno+0x9d/0xd0\n[ 161.124676] Code: 0f 87 da 30 dd 00 83 e3 01 b8 00 00 00 05 75 d7 44 89 ee 48 c7 c7 c0 57 24 98 89 44 24 04 c6\n 05 ce 2b 61 03 01 e8 99 20 d8 00 \u003c0f\u003e 0b 8b 44 24 04 eb b5 4c 89 e6 48 c7 c7 a0 6d a4 99 e8 cc 15 33\n[ 161.127797] RSP: 0018:ffffc90000e2f9c0 EFLAGS: 00010286\n[ 161.128794] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000\n[ 161.130089] RDX: 1ffff1103ee16f6d RSI: 0000000000000008 RDI: fffff520001c5f2a\n[ 161.131379] RBP: 0000000000000022 R08: 0000000000000001 R09: ffff8881f70c1827\n[ 161.132664] R10: ffffed103ee18304 R11: 0000000000000001 R12: 0000000000000021\n[ 161.133949] R13: 00000000ffffffb6 R14: ffff8881317c0000 R15: ffffc90000e2fbd8\n[ 161.135244] FS: 0000000000000000(0000) GS:ffff8881f7080000(0000) knlGS:0000000000000000\n[ 161.136695] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 161.137761] CR2: 00007fcaad70b348 CR3: 0000000144256006 CR4: 0000000000770ee0\n[ 161.139041] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ 161.140291] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ 161.141519] PKRU: 55555554\n[ 161.142076] Call Trace:\n[ 161.142575] ? __warn+0x9b/0x140\n[ 161.143229] ? nfserrno+0x9d/0xd0\n[ 161.143872] ? report_bug+0x125/0x150\n[ 161.144595] ? handle_bug+0x41/0x90\n[ 161.145284] ? exc_invalid_op+0x14/0x70\n[ 161.146009] ? asm_exc_invalid_op+0x12/0x20\n[ 161.146816] ? nfserrno+0x9d/0xd0\n[ 161.147487] nfsd_buffered_readdir+0x28b/0x2b0\n[ 161.148333] ? nfsd4_encode_dirent_fattr+0x380/0x380\n[ 161.149258] ? nfsd_buffered_filldir+0xf0/0xf0\n[ 161.150093] ? wait_for_concurrent_writes+0x170/0x170\n[ 161.151004] ? generic_file_llseek_size+0x48/0x160\n[ 161.151895] nfsd_readdir+0x132/0x190\n[ 161.152606] ? nfsd4_encode_dirent_fattr+0x380/0x380\n[ 161.153516] ? nfsd_unlink+0x380/0x380\n[ 161.154256] ? override_creds+0x45/0x60\n[ 161.155006] nfsd4_encode_readdir+0x21a/0x3d0\n[ 161.155850] ? nfsd4_encode_readlink+0x210/0x210\n[ 161.156731] ? write_bytes_to_xdr_buf+0x97/0xe0\n[ 161.157598] ? __write_bytes_to_xdr_buf+0xd0/0xd0\n[ 161.158494] ? lock_downgrade+0x90/0x90\n[ 161.159232] ? nfs4svc_decode_voidarg+0x10/0x10\n[ 161.160092] nfsd4_encode_operation+0x15a/0x440\n[ 161.160959] nfsd4_proc_compound+0x718/0xe90\n[ 161.161818] nfsd_dispatch+0x18e/0x2c0\n[ 161.162586] svc_process_common+0x786/0xc50\n[ 161.163403] ? nfsd_svc+0x380/0x380\n[ 161.164137] ? svc_printk+0x160/0x160\n[ 161.164846] ? svc_xprt_do_enqueue.part.0+0x365/0x380\n[ 161.165808] ? nfsd_svc+0x380/0x380\n[ 161.166523] ? rcu_is_watching+0x23/0x40\n[ 161.167309] svc_process+0x1a5/0x200\n[ 161.168019] nfsd+0x1f5/0x380\n[ 161.168663] ? nfsd_shutdown_threads+0x260/0x260\n[ 161.169554] kthread+0x1c4/0x210\n[ 161.170224] ? kthread_insert_work_sanity_check+0x80/0x80\n[ 161.171246] ret_from_fork+0x1f/0x30",
"id": "GHSA-vcrj-5576-fc99",
"modified": "2025-11-04T00:31:40Z",
"published": "2024-10-21T18:30:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49875"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0ea4333c679f333e23956de743ad17387819d3f2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/340e61e44c1d2a15c42ec72ade9195ad525fd048"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6fe058502f8864649c3d614b06b2235223798f48"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/825789ca94602543101045ad3aad19b2b60c6b2a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c76005adfa93d1a027433331252422078750321f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e9cfecca22a36b927a440abc6307efb9e138fed5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f7d8ee9db94372b8235f5f22bb24381891594c42"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
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