{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-54113", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-54113", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-12-24T13:06:35.514Z", "updatedAt": "2026-05-11T19:55:43.650Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "rcu: dump vmalloc memory info safely", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nrcu: dump vmalloc memory info safely\n\nCurrently, for double invoke call_rcu(), will dump rcu_head objects memory\ninfo, if the objects is not allocated from the slab allocator, the\nvmalloc_dump_obj() will be invoke and the vmap_area_lock spinlock need to\nbe held, since the call_rcu() can be invoked in interrupt context,\ntherefore, there is a possibility of spinlock deadlock scenarios.\n\nAnd in Preempt-RT kernel, the rcutorture test also trigger the following\nlockdep warning:\n\nBUG: sleeping function called from invalid context at kernel/locking/spinlock_rt.c:48\nin_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 1, name: swapper/0\npreempt_count: 1, expected: 0\nRCU nest depth: 1, expected: 1\n3 locks held by swapper/0/1:\n #0: ffffffffb534ee80 (fullstop_mutex){+.+.}-{4:4}, at: torture_init_begin+0x24/0xa0\n #1: ffffffffb5307940 (rcu_read_lock){....}-{1:3}, at: rcu_torture_init+0x1ec7/0x2370\n #2: ffffffffb536af40 (vmap_area_lock){+.+.}-{3:3}, at: find_vmap_area+0x1f/0x70\nirq event stamp: 565512\nhardirqs last enabled at (565511): [] __call_rcu_common+0x218/0x940\nhardirqs last disabled at (565512): [] rcu_torture_init+0x20b2/0x2370\nsoftirqs last enabled at (399112): [] __local_bh_enable_ip+0x126/0x170\nsoftirqs last disabled at (399106): [] inet_register_protosw+0x9/0x1d0\nPreemption disabled at:\n[] rcu_torture_init+0x1f13/0x2370\nCPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.5.0-rc4-rt2-yocto-preempt-rt+ #15\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.16.2-0-gea1b7a073390-prebuilt.qemu.org 04/01/2014\nCall Trace:\n \n dump_stack_lvl+0x68/0xb0\n dump_stack+0x14/0x20\n __might_resched+0x1aa/0x280\n ? __pfx_rcu_torture_err_cb+0x10/0x10\n rt_spin_lock+0x53/0x130\n ? find_vmap_area+0x1f/0x70\n find_vmap_area+0x1f/0x70\n vmalloc_dump_obj+0x20/0x60\n mem_dump_obj+0x22/0x90\n __call_rcu_common+0x5bf/0x940\n ? debug_smp_processor_id+0x1b/0x30\n call_rcu_hurry+0x14/0x20\n rcu_torture_init+0x1f82/0x2370\n ? __pfx_rcu_torture_leak_cb+0x10/0x10\n ? __pfx_rcu_torture_leak_cb+0x10/0x10\n ? __pfx_rcu_torture_init+0x10/0x10\n do_one_initcall+0x6c/0x300\n ? debug_smp_processor_id+0x1b/0x30\n kernel_init_freeable+0x2b9/0x540\n ? __pfx_kernel_init+0x10/0x10\n kernel_init+0x1f/0x150\n ret_from_fork+0x40/0x50\n ? __pfx_kernel_init+0x10/0x10\n ret_from_fork_asm+0x1b/0x30\n \n\nThe previous patch fixes this by using the deadlock-safe best-effort\nversion of find_vm_area. However, in case of failure print the fact that\nthe pointer was a vmalloc pointer so that we print at least something.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "98f180837a896ecedf8f7e12af22b57f271d43c9", "status": "affected", "versionType": "git", "lessThan": "0a22f9c17b1aa2a35b5eedee928f7841595b55cd" }, { "version": "98f180837a896ecedf8f7e12af22b57f271d43c9", "status": "affected", "versionType": "git", "lessThan": "3f7a4e88e40e38c0b16a4bcb599b7b1d8c81440d" }, { "version": "98f180837a896ecedf8f7e12af22b57f271d43c9", "status": "affected", "versionType": "git", "lessThan": "dddca4c46ec92f83449bc91dd199f46a89e066be" }, { "version": "98f180837a896ecedf8f7e12af22b57f271d43c9", "status": "affected", "versionType": "git", "lessThan": "8fb1601ec0a2c4c34fc2170af767e5c2a6400573" }, { "version": "98f180837a896ecedf8f7e12af22b57f271d43c9", "status": "affected", "versionType": "git", "lessThan": "c83ad36a18c02c0f51280b50272327807916987f" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "5.12", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "5.12" }, { "version": "5.15.132", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.53", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.4.16", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.4.*" }, { "version": "6.5.3", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.5.*" }, { "version": "6.6", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }