ghsa-phj2-hh6g-c95p
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
net/iucv: Fix size of interrupt data
iucv_irq_data needs to be 4 bytes larger. These bytes are not used by the iucv module, but written by the z/VM hypervisor in case a CPU is deconfigured.
Reported as: BUG dma-kmalloc-64 (Not tainted): kmalloc Redzone overwritten
0x0000000000400564-0x0000000000400567 @offset=1380. First byte 0x80 instead of 0xcc Allocated in iucv_cpu_prepare+0x44/0xd0 age=167839 cpu=2 pid=1 __kmem_cache_alloc_node+0x166/0x450 kmalloc_node_trace+0x3a/0x70 iucv_cpu_prepare+0x44/0xd0 cpuhp_invoke_callback+0x156/0x2f0 cpuhp_issue_call+0xf0/0x298 __cpuhp_setup_state_cpuslocked+0x136/0x338 __cpuhp_setup_state+0xf4/0x288 iucv_init+0xf4/0x280 do_one_initcall+0x78/0x390 do_initcalls+0x11a/0x140 kernel_init_freeable+0x25e/0x2a0 kernel_init+0x2e/0x170 __ret_from_fork+0x3c/0x58 ret_from_fork+0xa/0x40 Freed in iucv_init+0x92/0x280 age=167839 cpu=2 pid=1 __kmem_cache_free+0x308/0x358 iucv_init+0x92/0x280 do_one_initcall+0x78/0x390 do_initcalls+0x11a/0x140 kernel_init_freeable+0x25e/0x2a0 kernel_init+0x2e/0x170 __ret_from_fork+0x3c/0x58 ret_from_fork+0xa/0x40 Slab 0x0000037200010000 objects=32 used=30 fp=0x0000000000400640 flags=0x1ffff00000010200(slab|head|node=0|zone=0| Object 0x0000000000400540 @offset=1344 fp=0x0000000000000000 Redzone 0000000000400500: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400510: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400520: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400530: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Object 0000000000400540: 00 01 00 03 00 00 00 00 00 00 00 00 00 00 00 00 ................ Object 0000000000400550: f3 86 81 f2 f4 82 f8 82 f0 f0 f0 f0 f0 f0 f0 f2 ................ Object 0000000000400560: 00 00 00 00 80 00 00 00 cc cc cc cc cc cc cc cc ................ Object 0000000000400570: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................ Redzone 0000000000400580: cc cc cc cc cc cc cc cc ........ Padding 00000000004005d4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ Padding 00000000004005e4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ Padding 00000000004005f4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZ CPU: 6 PID: 121030 Comm: 116-pai-crypto. Not tainted 6.3.0-20230221.rc0.git4.99b8246b2d71.300.fc37.s390x+debug #1 Hardware name: IBM 3931 A01 704 (z/VM 7.3.0) Call Trace: [<000000032aa034ec>] dump_stack_lvl+0xac/0x100 [<0000000329f5a6cc>] check_bytes_and_report+0x104/0x140 [<0000000329f5aa78>] check_object+0x370/0x3c0 [<0000000329f5ede6>] free_debug_processing+0x15e/0x348 [<0000000329f5f06a>] free_to_partial_list+0x9a/0x2f0 [<0000000329f5f4a4>] __slab_free+0x1e4/0x3a8 [<0000000329f61768>] __kmem_cache_free+0x308/0x358 [<000000032a91465c>] iucv_cpu_dead+0x6c/0x88 [<0000000329c2fc66>] cpuhp_invoke_callback+0x156/0x2f0 [<000000032aa062da>] _cpu_down.constprop.0+0x22a/0x5e0 [<0000000329c3243e>] cpu_device_down+0x4e/0x78 [<000000032a61dee0>] device_offline+0xc8/0x118 [<000000032a61e048>] online_store+0x60/0xe0 [<000000032a08b6b0>] kernfs_fop_write_iter+0x150/0x1e8 [<0000000329fab65c>] vfs_write+0x174/0x360 [<0000000329fab9fc>] ksys_write+0x74/0x100 [<000000032aa03a5a>] __do_syscall+0x1da/0x208 [<000000032aa177b2>] system_call+0x82/0xb0 INFO: lockdep is turned off. FIX dma-kmalloc-64: Restoring kmalloc Redzone 0x0000000000400564-0x0000000000400567=0xcc FIX dma-kmalloc-64: Object at 0x0000000000400540 not freed
{
"affected": [],
"aliases": [
"CVE-2023-53108"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-02T16:15:29Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/iucv: Fix size of interrupt data\n\niucv_irq_data needs to be 4 bytes larger.\nThese bytes are not used by the iucv module, but written by\nthe z/VM hypervisor in case a CPU is deconfigured.\n\nReported as:\nBUG dma-kmalloc-64 (Not tainted): kmalloc Redzone overwritten\n-----------------------------------------------------------------------------\n0x0000000000400564-0x0000000000400567 @offset=1380. First byte 0x80 instead of 0xcc\nAllocated in iucv_cpu_prepare+0x44/0xd0 age=167839 cpu=2 pid=1\n__kmem_cache_alloc_node+0x166/0x450\nkmalloc_node_trace+0x3a/0x70\niucv_cpu_prepare+0x44/0xd0\ncpuhp_invoke_callback+0x156/0x2f0\ncpuhp_issue_call+0xf0/0x298\n__cpuhp_setup_state_cpuslocked+0x136/0x338\n__cpuhp_setup_state+0xf4/0x288\niucv_init+0xf4/0x280\ndo_one_initcall+0x78/0x390\ndo_initcalls+0x11a/0x140\nkernel_init_freeable+0x25e/0x2a0\nkernel_init+0x2e/0x170\n__ret_from_fork+0x3c/0x58\nret_from_fork+0xa/0x40\nFreed in iucv_init+0x92/0x280 age=167839 cpu=2 pid=1\n__kmem_cache_free+0x308/0x358\niucv_init+0x92/0x280\ndo_one_initcall+0x78/0x390\ndo_initcalls+0x11a/0x140\nkernel_init_freeable+0x25e/0x2a0\nkernel_init+0x2e/0x170\n__ret_from_fork+0x3c/0x58\nret_from_fork+0xa/0x40\nSlab 0x0000037200010000 objects=32 used=30 fp=0x0000000000400640 flags=0x1ffff00000010200(slab|head|node=0|zone=0|\nObject 0x0000000000400540 @offset=1344 fp=0x0000000000000000\nRedzone 0000000000400500: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................\nRedzone 0000000000400510: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................\nRedzone 0000000000400520: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................\nRedzone 0000000000400530: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................\nObject 0000000000400540: 00 01 00 03 00 00 00 00 00 00 00 00 00 00 00 00 ................\nObject 0000000000400550: f3 86 81 f2 f4 82 f8 82 f0 f0 f0 f0 f0 f0 f0 f2 ................\nObject 0000000000400560: 00 00 00 00 80 00 00 00 cc cc cc cc cc cc cc cc ................\nObject 0000000000400570: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc ................\nRedzone 0000000000400580: cc cc cc cc cc cc cc cc ........\nPadding 00000000004005d4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ\nPadding 00000000004005e4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZZZZZ\nPadding 00000000004005f4: 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a ZZZZZZZZZZZZ\nCPU: 6 PID: 121030 Comm: 116-pai-crypto. Not tainted 6.3.0-20230221.rc0.git4.99b8246b2d71.300.fc37.s390x+debug #1\nHardware name: IBM 3931 A01 704 (z/VM 7.3.0)\nCall Trace:\n[\u003c000000032aa034ec\u003e] dump_stack_lvl+0xac/0x100\n[\u003c0000000329f5a6cc\u003e] check_bytes_and_report+0x104/0x140\n[\u003c0000000329f5aa78\u003e] check_object+0x370/0x3c0\n[\u003c0000000329f5ede6\u003e] free_debug_processing+0x15e/0x348\n[\u003c0000000329f5f06a\u003e] free_to_partial_list+0x9a/0x2f0\n[\u003c0000000329f5f4a4\u003e] __slab_free+0x1e4/0x3a8\n[\u003c0000000329f61768\u003e] __kmem_cache_free+0x308/0x358\n[\u003c000000032a91465c\u003e] iucv_cpu_dead+0x6c/0x88\n[\u003c0000000329c2fc66\u003e] cpuhp_invoke_callback+0x156/0x2f0\n[\u003c000000032aa062da\u003e] _cpu_down.constprop.0+0x22a/0x5e0\n[\u003c0000000329c3243e\u003e] cpu_device_down+0x4e/0x78\n[\u003c000000032a61dee0\u003e] device_offline+0xc8/0x118\n[\u003c000000032a61e048\u003e] online_store+0x60/0xe0\n[\u003c000000032a08b6b0\u003e] kernfs_fop_write_iter+0x150/0x1e8\n[\u003c0000000329fab65c\u003e] vfs_write+0x174/0x360\n[\u003c0000000329fab9fc\u003e] ksys_write+0x74/0x100\n[\u003c000000032aa03a5a\u003e] __do_syscall+0x1da/0x208\n[\u003c000000032aa177b2\u003e] system_call+0x82/0xb0\nINFO: lockdep is turned off.\nFIX dma-kmalloc-64: Restoring kmalloc Redzone 0x0000000000400564-0x0000000000400567=0xcc\nFIX dma-kmalloc-64: Object at 0x0000000000400540 not freed",
"id": "GHSA-phj2-hh6g-c95p",
"modified": "2025-05-02T18:31:36Z",
"published": "2025-05-02T18:31:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53108"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3cfdefdaaa4b2a77e84d0db5e0a47a7aa3bb615a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3d87debb8ed2649608ff432699e7c961c0c6f03b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/71da5991b6438ad6da13ceb25465ee2760a1c52f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/93a970494881004c348d8feb38463ee72496e99a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a908eae0f71811afee86be7088692f1aa5855c3b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b0d2bb5e31a693ebc8888eb407f8a257a3680efa"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bd2e78462ae18484e55ae4d285df2c86b86bdd12"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c78f1345db4e4b3b78f9b768f4074ebd60abe966"
}
],
"schema_version": "1.4.0",
"severity": []
}
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.