CVE-2025-37876 (GCVE-0-2025-37876)
Vulnerability from cvelistv5
Published
2025-05-09 06:45
Modified
2025-05-26 05:22
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
netfs: Only create /proc/fs/netfs with CONFIG_PROC_FS
When testing a special config:
CONFIG_NETFS_SUPPORTS=y
CONFIG_PROC_FS=n
The system crashes with something like:
[ 3.766197] ------------[ cut here ]------------
[ 3.766484] kernel BUG at mm/mempool.c:560!
[ 3.766789] Oops: invalid opcode: 0000 [#1] SMP NOPTI
[ 3.767123] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Tainted: G W
[ 3.767777] Tainted: [W]=WARN
[ 3.767968] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),
[ 3.768523] RIP: 0010:mempool_alloc_slab.cold+0x17/0x19
[ 3.768847] Code: 50 fe ff 58 5b 5d 41 5c 41 5d 41 5e 41 5f e9 93 95 13 00
[ 3.769977] RSP: 0018:ffffc90000013998 EFLAGS: 00010286
[ 3.770315] RAX: 000000000000002f RBX: ffff888100ba8640 RCX: 0000000000000000
[ 3.770749] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 00000000ffffffff
[ 3.771217] RBP: 0000000000092880 R08: 0000000000000000 R09: ffffc90000013828
[ 3.771664] R10: 0000000000000001 R11: 00000000ffffffea R12: 0000000000092cc0
[ 3.772117] R13: 0000000000000400 R14: ffff8881004b1620 R15: ffffea0004ef7e40
[ 3.772554] FS: 0000000000000000(0000) GS:ffff8881b5f3c000(0000) knlGS:0000000000000000
[ 3.773061] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 3.773443] CR2: ffffffff830901b4 CR3: 0000000004296001 CR4: 0000000000770ef0
[ 3.773884] PKRU: 55555554
[ 3.774058] Call Trace:
[ 3.774232] <TASK>
[ 3.774371] mempool_alloc_noprof+0x6a/0x190
[ 3.774649] ? _printk+0x57/0x80
[ 3.774862] netfs_alloc_request+0x85/0x2ce
[ 3.775147] netfs_readahead+0x28/0x170
[ 3.775395] read_pages+0x6c/0x350
[ 3.775623] ? srso_alias_return_thunk+0x5/0xfbef5
[ 3.775928] page_cache_ra_unbounded+0x1bd/0x2a0
[ 3.776247] filemap_get_pages+0x139/0x970
[ 3.776510] ? srso_alias_return_thunk+0x5/0xfbef5
[ 3.776820] filemap_read+0xf9/0x580
[ 3.777054] ? srso_alias_return_thunk+0x5/0xfbef5
[ 3.777368] ? srso_alias_return_thunk+0x5/0xfbef5
[ 3.777674] ? find_held_lock+0x32/0x90
[ 3.777929] ? netfs_start_io_read+0x19/0x70
[ 3.778221] ? netfs_start_io_read+0x19/0x70
[ 3.778489] ? srso_alias_return_thunk+0x5/0xfbef5
[ 3.778800] ? lock_acquired+0x1e6/0x450
[ 3.779054] ? srso_alias_return_thunk+0x5/0xfbef5
[ 3.779379] netfs_buffered_read_iter+0x57/0x80
[ 3.779670] __kernel_read+0x158/0x2c0
[ 3.779927] bprm_execve+0x300/0x7a0
[ 3.780185] kernel_execve+0x10c/0x140
[ 3.780423] ? __pfx_kernel_init+0x10/0x10
[ 3.780690] kernel_init+0xd5/0x150
[ 3.780910] ret_from_fork+0x2d/0x50
[ 3.781156] ? __pfx_kernel_init+0x10/0x10
[ 3.781414] ret_from_fork_asm+0x1a/0x30
[ 3.781677] </TASK>
[ 3.781823] Modules linked in:
[ 3.782065] ---[ end trace 0000000000000000 ]---
This is caused by the following error path in netfs_init():
if (!proc_mkdir("fs/netfs", NULL))
goto error_proc;
Fix this by adding ifdef in netfs_main(), so that /proc/fs/netfs is only
created with CONFIG_PROC_FS.
References
Impacted products
{ "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "fs/netfs/main.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "2ef6eea2efce01d1956ace483216f6b6e26330c9", "status": "affected", "version": "7eb5b3e3a0a55f2d166ca949ef47ca6e0c704aab", "versionType": "git" }, { "lessThan": "6c4c5e0b96a90f2a11c378e66edc1f25165e10b6", "status": "affected", "version": "7eb5b3e3a0a55f2d166ca949ef47ca6e0c704aab", "versionType": "git" }, { "lessThan": "40cb48eba3b4b79e110c1a35d33a48cac54507a2", "status": "affected", "version": "7eb5b3e3a0a55f2d166ca949ef47ca6e0c704aab", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "fs/netfs/main.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "status": "affected", "version": "6.8" }, { "lessThan": "6.8", "status": "unaffected", "version": "0", "versionType": "semver" }, { "lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.26", "versionType": "semver" }, { "lessThanOrEqual": "6.14.*", "status": "unaffected", "version": "6.14.5", "versionType": "semver" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "6.15", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.12.26", "versionStartIncluding": "6.8", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.14.5", "versionStartIncluding": "6.8", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.15", "versionStartIncluding": "6.8", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Only create /proc/fs/netfs with CONFIG_PROC_FS\n\nWhen testing a special config:\n\nCONFIG_NETFS_SUPPORTS=y\nCONFIG_PROC_FS=n\n\nThe system crashes with something like:\n\n[ 3.766197] ------------[ cut here ]------------\n[ 3.766484] kernel BUG at mm/mempool.c:560!\n[ 3.766789] Oops: invalid opcode: 0000 [#1] SMP NOPTI\n[ 3.767123] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Tainted: G W\n[ 3.767777] Tainted: [W]=WARN\n[ 3.767968] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),\n[ 3.768523] RIP: 0010:mempool_alloc_slab.cold+0x17/0x19\n[ 3.768847] Code: 50 fe ff 58 5b 5d 41 5c 41 5d 41 5e 41 5f e9 93 95 13 00\n[ 3.769977] RSP: 0018:ffffc90000013998 EFLAGS: 00010286\n[ 3.770315] RAX: 000000000000002f RBX: ffff888100ba8640 RCX: 0000000000000000\n[ 3.770749] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 00000000ffffffff\n[ 3.771217] RBP: 0000000000092880 R08: 0000000000000000 R09: ffffc90000013828\n[ 3.771664] R10: 0000000000000001 R11: 00000000ffffffea R12: 0000000000092cc0\n[ 3.772117] R13: 0000000000000400 R14: ffff8881004b1620 R15: ffffea0004ef7e40\n[ 3.772554] FS: 0000000000000000(0000) GS:ffff8881b5f3c000(0000) knlGS:0000000000000000\n[ 3.773061] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 3.773443] CR2: ffffffff830901b4 CR3: 0000000004296001 CR4: 0000000000770ef0\n[ 3.773884] PKRU: 55555554\n[ 3.774058] Call Trace:\n[ 3.774232] \u003cTASK\u003e\n[ 3.774371] mempool_alloc_noprof+0x6a/0x190\n[ 3.774649] ? _printk+0x57/0x80\n[ 3.774862] netfs_alloc_request+0x85/0x2ce\n[ 3.775147] netfs_readahead+0x28/0x170\n[ 3.775395] read_pages+0x6c/0x350\n[ 3.775623] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 3.775928] page_cache_ra_unbounded+0x1bd/0x2a0\n[ 3.776247] filemap_get_pages+0x139/0x970\n[ 3.776510] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 3.776820] filemap_read+0xf9/0x580\n[ 3.777054] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 3.777368] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 3.777674] ? find_held_lock+0x32/0x90\n[ 3.777929] ? netfs_start_io_read+0x19/0x70\n[ 3.778221] ? netfs_start_io_read+0x19/0x70\n[ 3.778489] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 3.778800] ? lock_acquired+0x1e6/0x450\n[ 3.779054] ? srso_alias_return_thunk+0x5/0xfbef5\n[ 3.779379] netfs_buffered_read_iter+0x57/0x80\n[ 3.779670] __kernel_read+0x158/0x2c0\n[ 3.779927] bprm_execve+0x300/0x7a0\n[ 3.780185] kernel_execve+0x10c/0x140\n[ 3.780423] ? __pfx_kernel_init+0x10/0x10\n[ 3.780690] kernel_init+0xd5/0x150\n[ 3.780910] ret_from_fork+0x2d/0x50\n[ 3.781156] ? __pfx_kernel_init+0x10/0x10\n[ 3.781414] ret_from_fork_asm+0x1a/0x30\n[ 3.781677] \u003c/TASK\u003e\n[ 3.781823] Modules linked in:\n[ 3.782065] ---[ end trace 0000000000000000 ]---\n\nThis is caused by the following error path in netfs_init():\n\n if (!proc_mkdir(\"fs/netfs\", NULL))\n goto error_proc;\n\nFix this by adding ifdef in netfs_main(), so that /proc/fs/netfs is only\ncreated with CONFIG_PROC_FS." } ], "providerMetadata": { "dateUpdated": "2025-05-26T05:22:50.030Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/2ef6eea2efce01d1956ace483216f6b6e26330c9" }, { "url": "https://git.kernel.org/stable/c/6c4c5e0b96a90f2a11c378e66edc1f25165e10b6" }, { "url": "https://git.kernel.org/stable/c/40cb48eba3b4b79e110c1a35d33a48cac54507a2" } ], "title": "netfs: Only create /proc/fs/netfs with CONFIG_PROC_FS", "x_generator": { "engine": "bippy-1.2.0" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2025-37876", "datePublished": "2025-05-09T06:45:40.934Z", "dateReserved": "2025-04-16T04:51:23.960Z", "dateUpdated": "2025-05-26T05:22:50.030Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "vulnerability-lookup:meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2025-37876\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-05-09T07:16:08.790\",\"lastModified\":\"2025-05-12T17:32:32.760\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfs: Only create /proc/fs/netfs with CONFIG_PROC_FS\\n\\nWhen testing a special config:\\n\\nCONFIG_NETFS_SUPPORTS=y\\nCONFIG_PROC_FS=n\\n\\nThe system crashes with something like:\\n\\n[ 3.766197] ------------[ cut here ]------------\\n[ 3.766484] kernel BUG at mm/mempool.c:560!\\n[ 3.766789] Oops: invalid opcode: 0000 [#1] SMP NOPTI\\n[ 3.767123] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Tainted: G W\\n[ 3.767777] Tainted: [W]=WARN\\n[ 3.767968] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),\\n[ 3.768523] RIP: 0010:mempool_alloc_slab.cold+0x17/0x19\\n[ 3.768847] Code: 50 fe ff 58 5b 5d 41 5c 41 5d 41 5e 41 5f e9 93 95 13 00\\n[ 3.769977] RSP: 0018:ffffc90000013998 EFLAGS: 00010286\\n[ 3.770315] RAX: 000000000000002f RBX: ffff888100ba8640 RCX: 0000000000000000\\n[ 3.770749] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 00000000ffffffff\\n[ 3.771217] RBP: 0000000000092880 R08: 0000000000000000 R09: ffffc90000013828\\n[ 3.771664] R10: 0000000000000001 R11: 00000000ffffffea R12: 0000000000092cc0\\n[ 3.772117] R13: 0000000000000400 R14: ffff8881004b1620 R15: ffffea0004ef7e40\\n[ 3.772554] FS: 0000000000000000(0000) GS:ffff8881b5f3c000(0000) knlGS:0000000000000000\\n[ 3.773061] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[ 3.773443] CR2: ffffffff830901b4 CR3: 0000000004296001 CR4: 0000000000770ef0\\n[ 3.773884] PKRU: 55555554\\n[ 3.774058] Call Trace:\\n[ 3.774232] \u003cTASK\u003e\\n[ 3.774371] mempool_alloc_noprof+0x6a/0x190\\n[ 3.774649] ? _printk+0x57/0x80\\n[ 3.774862] netfs_alloc_request+0x85/0x2ce\\n[ 3.775147] netfs_readahead+0x28/0x170\\n[ 3.775395] read_pages+0x6c/0x350\\n[ 3.775623] ? srso_alias_return_thunk+0x5/0xfbef5\\n[ 3.775928] page_cache_ra_unbounded+0x1bd/0x2a0\\n[ 3.776247] filemap_get_pages+0x139/0x970\\n[ 3.776510] ? srso_alias_return_thunk+0x5/0xfbef5\\n[ 3.776820] filemap_read+0xf9/0x580\\n[ 3.777054] ? srso_alias_return_thunk+0x5/0xfbef5\\n[ 3.777368] ? srso_alias_return_thunk+0x5/0xfbef5\\n[ 3.777674] ? find_held_lock+0x32/0x90\\n[ 3.777929] ? netfs_start_io_read+0x19/0x70\\n[ 3.778221] ? netfs_start_io_read+0x19/0x70\\n[ 3.778489] ? srso_alias_return_thunk+0x5/0xfbef5\\n[ 3.778800] ? lock_acquired+0x1e6/0x450\\n[ 3.779054] ? srso_alias_return_thunk+0x5/0xfbef5\\n[ 3.779379] netfs_buffered_read_iter+0x57/0x80\\n[ 3.779670] __kernel_read+0x158/0x2c0\\n[ 3.779927] bprm_execve+0x300/0x7a0\\n[ 3.780185] kernel_execve+0x10c/0x140\\n[ 3.780423] ? __pfx_kernel_init+0x10/0x10\\n[ 3.780690] kernel_init+0xd5/0x150\\n[ 3.780910] ret_from_fork+0x2d/0x50\\n[ 3.781156] ? __pfx_kernel_init+0x10/0x10\\n[ 3.781414] ret_from_fork_asm+0x1a/0x30\\n[ 3.781677] \u003c/TASK\u003e\\n[ 3.781823] Modules linked in:\\n[ 3.782065] ---[ end trace 0000000000000000 ]---\\n\\nThis is caused by the following error path in netfs_init():\\n\\n if (!proc_mkdir(\\\"fs/netfs\\\", NULL))\\n goto error_proc;\\n\\nFix this by adding ifdef in netfs_main(), so that /proc/fs/netfs is only\\ncreated with CONFIG_PROC_FS.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfs: Solo crea /proc/fs/netfs con CONFIG_PROC_FS Al probar una configuraci\u00f3n especial: CONFIG_NETFS_SUPPORTS=y CONFIG_PROC_FS=n El sistema se bloquea con algo como: [ 3.766197] ------------[ corte aqu\u00ed ]------------ [ 3.766484] \u00a1ERROR del kernel en mm/mempool.c:560! [ 3.766789] Oops: c\u00f3digo de operaci\u00f3n no v\u00e1lido: 0000 [#1] SMP NOPTI [ 3.767123] CPU: 0 UID: 0 PID: 1 Comm: swapper/0 Contaminado: GW [ 3.767777] Contaminado: [W]=WARN [ 3.767968] Nombre del hardware: QEMU Standard PC (i440FX + PIIX, 1996), [ 3.768523] RIP: 0010:mempool_alloc_slab.cold+0x17/0x19 [ 3.768847] C\u00f3digo: 50 fe ff 58 5b 5d 41 5c 41 5d 41 5e 41 5f e9 93 95 13 00 [ 3.769977] RSP: 0018:ffffc90000013998 EFLAGS: 00010286 [3.770315] RAX: 000000000000002f RBX: ffff888100ba8640 RCX: 0000000000000000 [3.770749] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 000000000ffffffff [3.771217] RBP: 0000000000092880 R08: 000000000000000 R09: ffffc90000013828 [3.771664] R10: 0000000000000001 R11: 00000000ffffffea R12: 0000000000092cc0 [3.772117] R13: 0000000000000400 R14: ffff8881004b1620 R15: ffffea0004ef7e40 [3.772554] FS: 0000000000000000(0000) GS:ffff8881b5f3c000(0000) knlGS:0000000000000000 [3.773061] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3.773443] CR2: ffffffff830901b4 CR3: 0000000004296001 CR4: 0000000000770ef0 [ 3.773884] PKRU: 55555554 [ 3.774058] Seguimiento de llamadas: [ 3.774232] [ 3.774371] mempool_alloc_noprof+0x6a/0x190 [ 3.774649] ? _printk+0x57/0x80 [ 3.774862] netfs_alloc_request+0x85/0x2ce [ 3.775147] netfs_readahead+0x28/0x170 [ 3.775395] read_pages+0x6c/0x350 [ 3.775623] ? srso_alias_return_thunk+0x5/0xfbef5 [ 3.775928] page_cache_ra_unbounded+0x1bd/0x2a0 [ 3.776247] filemap_get_pages+0x139/0x970 [ 3.776510] ? srso_alias_return_thunk+0x5/0xfbef5 [ 3.776820] filemap_read+0xf9/0x580 [ 3.777054] ? srso_alias_return_thunk+0x5/0xfbef5 [ 3.777368] ? srso_alias_return_thunk+0x5/0xfbef5 [ 3.777674] ? find_held_lock+0x32/0x90 [ 3.777929] ? netfs_start_io_read+0x19/0x70 [ 3.778221] ? netfs_start_io_read+0x19/0x70 [ 3.778489] ? srso_alias_return_thunk+0x5/0xfbef5 [ 3.778800] ? lock_acquired+0x1e6/0x450 [ 3.779054] ? srso_alias_return_thunk+0x5/0xfbef5 [ 3.779379] netfs_buffered_read_iter+0x57/0x80 [ 3.779670] __kernel_read+0x158/0x2c0 [ 3.779927] bprm_execve+0x300/0x7a0 [ 3.780185] kernel_execve+0x10c/0x140 [ 3.780423] ? __pfx_kernel_init+0x10/0x10 [ 3.780690] kernel_init+0xd5/0x150 [ 3.780910] ret_from_fork+0x2d/0x50 [ 3.781156] ? __pfx_kernel_init+0x10/0x10 [ 3.781414] ret_from_fork_asm+0x1a/0x30 [ 3.781677] [ 3.781823] Modules linked in: [ 3.782065] ---[ fin de seguimiento 0000000000000000 ]--- Esto se debe a la siguiente ruta de error en netfs_init(): if (!proc_mkdir(\\\"fs/netfs\\\", NULL)) goto error_proc; Solucione esto agregando ifdef en netfs_main(), de modo que /proc/fs/netfs solo se cree con CONFIG_PROC_FS.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2ef6eea2efce01d1956ace483216f6b6e26330c9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/40cb48eba3b4b79e110c1a35d33a48cac54507a2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6c4c5e0b96a90f2a11c378e66edc1f25165e10b6\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}" } }
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Sightings
Author | Source | Type | Date |
---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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